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Finding the Fourth Proportional to 12,801,698.40, 19,202,547.60 and 12,801,698.40

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Solution

The fourth proportional to 12,801,698.40, 19,202,547.60 and 12,801,698.40 is: 19,202,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,801,698.40 : 19,202,547.60 = 12,801,698.40 : x
  2. Step 2: Convert to fraction form
    12,801,698.40/19,202,547.60 = 12,801,698.40/x
  3. Step 3: Cross multiply
    12,801,698.40x = 19,202,547.60 × 12,801,698.40
  4. Step 4: Simplify right side
    12,801,698.40x = 245,825,222,886,843.88
  5. Step 5: Solve for x
    x = 245,825,222,886,843.88/12,801,698.40
  6. Step 6: Final answer
    x = 19,202,547.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.