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Finding the Fourth Proportional to 13,306,914.28, 18,361,999.92 and 7,505,793.91

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Solution

The fourth proportional to 13,306,914.28, 18,361,999.92 and 7,505,793.91 is: 10,357,125.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306,914.28 : 18,361,999.92 = 7,505,793.91 : x
  2. Step 2: Convert to fraction form
    13,306,914.28/18,361,999.92 = 7,505,793.91/x
  3. Step 3: Cross multiply
    13,306,914.28x = 18,361,999.92 × 7,505,793.91
  4. Step 4: Simplify right side
    13,306,914.28x = 137,821,387,174,956.50
  5. Step 5: Solve for x
    x = 137,821,387,174,956.50/13,306,914.28
  6. Step 6: Final answer
    x = 10,357,125.95

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