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Finding the Fourth Proportional to 24,487.68, 36,722.40 and 9,691.68

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Solution

The fourth proportional to 24,487.68, 36,722.40 and 9,691.68 is: 14,533.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,487.68 : 36,722.40 = 9,691.68 : x
  2. Step 2: Convert to fraction form
    24,487.68/36,722.40 = 9,691.68/x
  3. Step 3: Cross multiply
    24,487.68x = 36,722.40 × 9,691.68
  4. Step 4: Simplify right side
    24,487.68x = 355,901,749.63
  5. Step 5: Solve for x
    x = 355,901,749.63/24,487.68
  6. Step 6: Final answer
    x = 14,533.91

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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.