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Finding the Fourth Proportional to 64,781.35, 97,200.24 and 22,691.68

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Solution

The fourth proportional to 64,781.35, 97,200.24 and 22,691.68 is: 34,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,781.35 : 97,200.24 = 22,691.68 : x
  2. Step 2: Convert to fraction form
    64,781.35/97,200.24 = 22,691.68/x
  3. Step 3: Cross multiply
    64,781.35x = 97,200.24 × 22,691.68
  4. Step 4: Simplify right side
    64,781.35x = 2,205,636,742.00
  5. Step 5: Solve for x
    x = 2,205,636,742.00/64,781.35
  6. Step 6: Final answer
    x = 34,047.40

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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.