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Finding the Fourth Proportional to 25,304,978.60, 34,921,036.68 and 13,702,542.92

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Solution

The fourth proportional to 25,304,978.60, 34,921,036.68 and 13,702,542.92 is: 18,909,599.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,304,978.60 : 34,921,036.68 = 13,702,542.92 : x
  2. Step 2: Convert to fraction form
    25,304,978.60/34,921,036.68 = 13,702,542.92/x
  3. Step 3: Cross multiply
    25,304,978.60x = 34,921,036.68 × 13,702,542.92
  4. Step 4: Simplify right side
    25,304,978.60x = 478,507,003,918,594.31
  5. Step 5: Solve for x
    x = 478,507,003,918,594.31/25,304,978.60
  6. Step 6: Final answer
    x = 18,909,599.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.