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Finding the Fourth Proportional to 64,578.83, 96,881.54 and 27,116.87

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Solution

The fourth proportional to 64,578.83, 96,881.54 and 27,116.87 is: 40,680.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,578.83 : 96,881.54 = 27,116.87 : x
  2. Step 2: Convert to fraction form
    64,578.83/96,881.54 = 27,116.87/x
  3. Step 3: Cross multiply
    64,578.83x = 96,881.54 × 27,116.87
  4. Step 4: Simplify right side
    64,578.83x = 2,627,123,505.59
  5. Step 5: Solve for x
    x = 2,627,123,505.59/64,578.83
  6. Step 6: Final answer
    x = 40,680.88

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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.