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Finding the Fourth Proportional to 64,877.00, 89,397.42 and 47,854.28

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Solution

The fourth proportional to 64,877.00, 89,397.42 and 47,854.28 is: 65,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,877.00 : 89,397.42 = 47,854.28 : x
  2. Step 2: Convert to fraction form
    64,877.00/89,397.42 = 47,854.28/x
  3. Step 3: Cross multiply
    64,877.00x = 89,397.42 × 47,854.28
  4. Step 4: Simplify right side
    64,877.00x = 4,278,048,720.97
  5. Step 5: Solve for x
    x = 4,278,048,720.97/64,877.00
  6. Step 6: Final answer
    x = 65,940.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.