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Finding the Fourth Proportional to 72,473.40, 108,694.24 and 36,897

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Solution

The fourth proportional to 72,473.40, 108,694.24 and 36,897 is: 55,337.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,473.40 : 108,694.24 = 36,897 : x
  2. Step 2: Convert to fraction form
    72,473.40/108,694.24 = 36,897/x
  3. Step 3: Cross multiply
    72,473.40x = 108,694.24 × 36,897
  4. Step 4: Simplify right side
    72,473.40x = 4,010,491,373.28
  5. Step 5: Solve for x
    x = 4,010,491,373.28/72,473.40
  6. Step 6: Final answer
    x = 55,337.43

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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.