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Finding the Fourth Proportional to 14,766,475.20, 22,149,712.80 and 10,987,339.20

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Solution

The fourth proportional to 14,766,475.20, 22,149,712.80 and 10,987,339.20 is: 16,481,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,766,475.20 : 22,149,712.80 = 10,987,339.20 : x
  2. Step 2: Convert to fraction form
    14,766,475.20/22,149,712.80 = 10,987,339.20/x
  3. Step 3: Cross multiply
    14,766,475.20x = 22,149,712.80 × 10,987,339.20
  4. Step 4: Simplify right side
    14,766,475.20x = 243,366,407,716,181.75
  5. Step 5: Solve for x
    x = 243,366,407,716,181.75/14,766,475.20
  6. Step 6: Final answer
    x = 16,481,008.80

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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.