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Finding the Fourth Proportional to 73,598.72, 110,416.71 and 21,008.39

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Solution

The fourth proportional to 73,598.72, 110,416.71 and 21,008.39 is: 31,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,598.72 : 110,416.71 = 21,008.39 : x
  2. Step 2: Convert to fraction form
    73,598.72/110,416.71 = 21,008.39/x
  3. Step 3: Cross multiply
    73,598.72x = 110,416.71 × 21,008.39
  4. Step 4: Simplify right side
    73,598.72x = 2,319,677,306.20
  5. Step 5: Solve for x
    x = 2,319,677,306.20/73,598.72
  6. Step 6: Final answer
    x = 31,517.90

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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.