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Finding the Fourth Proportional to 8,803,713.20, 13,205,569.80 and 5,780,404.40

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Solution

The fourth proportional to 8,803,713.20, 13,205,569.80 and 5,780,404.40 is: 8,670,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803,713.20 : 13,205,569.80 = 5,780,404.40 : x
  2. Step 2: Convert to fraction form
    8,803,713.20/13,205,569.80 = 5,780,404.40/x
  3. Step 3: Cross multiply
    8,803,713.20x = 13,205,569.80 × 5,780,404.40
  4. Step 4: Simplify right side
    8,803,713.20x = 76,333,533,776,427.12
  5. Step 5: Solve for x
    x = 76,333,533,776,427.12/8,803,713.20
  6. Step 6: Final answer
    x = 8,670,606.60

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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.