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Finding the Fourth Proportional to 27,281,041.20, 40,921,561.80 and 25,474,141.80

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Solution

The fourth proportional to 27,281,041.20, 40,921,561.80 and 25,474,141.80 is: 38,211,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,281,041.20 : 40,921,561.80 = 25,474,141.80 : x
  2. Step 2: Convert to fraction form
    27,281,041.20/40,921,561.80 = 25,474,141.80/x
  3. Step 3: Cross multiply
    27,281,041.20x = 40,921,561.80 × 25,474,141.80
  4. Step 4: Simplify right side
    27,281,041.20x = 1,042,441,667,970,663.25
  5. Step 5: Solve for x
    x = 1,042,441,667,970,663.25/27,281,041.20
  6. Step 6: Final answer
    x = 38,211,212.70

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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.