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Finding the Fourth Proportional to 14,561,531.20, 21,884,287.20 and 12,713,953.60

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Solution

The fourth proportional to 14,561,531.20, 21,884,287.20 and 12,713,953.60 is: 19,107,593.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,561,531.20 : 21,884,287.20 = 12,713,953.60 : x
  2. Step 2: Convert to fraction form
    14,561,531.20/21,884,287.20 = 12,713,953.60/x
  3. Step 3: Cross multiply
    14,561,531.20x = 21,884,287.20 × 12,713,953.60
  4. Step 4: Simplify right side
    14,561,531.20x = 278,235,812,029,873.91
  5. Step 5: Solve for x
    x = 278,235,812,029,873.91/14,561,531.20
  6. Step 6: Final answer
    x = 19,107,593.03

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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.