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Finding the Fourth Proportional to 62,911.64, 86,819.88 and 34,617.32

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Solution

The fourth proportional to 62,911.64, 86,819.88 and 34,617.32 is: 47,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,911.64 : 86,819.88 = 34,617.32 : x
  2. Step 2: Convert to fraction form
    62,911.64/86,819.88 = 34,617.32/x
  3. Step 3: Cross multiply
    62,911.64x = 86,819.88 × 34,617.32
  4. Step 4: Simplify right side
    62,911.64x = 3,005,471,568.32
  5. Step 5: Solve for x
    x = 3,005,471,568.32/62,911.64
  6. Step 6: Final answer
    x = 47,772.90

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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.