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Finding the Fourth Proportional to 12,801,656.40, 19,202,484.60 and 12,801,656.40

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Solution

The fourth proportional to 12,801,656.40, 19,202,484.60 and 12,801,656.40 is: 19,202,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,801,656.40 : 19,202,484.60 = 12,801,656.40 : x
  2. Step 2: Convert to fraction form
    12,801,656.40/19,202,484.60 = 12,801,656.40/x
  3. Step 3: Cross multiply
    12,801,656.40x = 19,202,484.60 × 12,801,656.40
  4. Step 4: Simplify right side
    12,801,656.40x = 245,823,609,875,491.47
  5. Step 5: Solve for x
    x = 245,823,609,875,491.47/12,801,656.40
  6. Step 6: Final answer
    x = 19,202,484.60

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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.