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Finding the Fourth Proportional to 64,712.90, 97,092.72 and 22,599.20

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Solution

The fourth proportional to 64,712.90, 97,092.72 and 22,599.20 is: 33,906.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,712.90 : 97,092.72 = 22,599.20 : x
  2. Step 2: Convert to fraction form
    64,712.90/97,092.72 = 22,599.20/x
  3. Step 3: Cross multiply
    64,712.90x = 97,092.72 × 22,599.20
  4. Step 4: Simplify right side
    64,712.90x = 2,194,217,797.82
  5. Step 5: Solve for x
    x = 2,194,217,797.82/64,712.90
  6. Step 6: Final answer
    x = 33,906.96

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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.