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Finding the Fourth Proportional to 63,447.87, 87,558.78 and 34,767.60

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Solution

The fourth proportional to 63,447.87, 87,558.78 and 34,767.60 is: 47,979.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,447.87 : 87,558.78 = 34,767.60 : x
  2. Step 2: Convert to fraction form
    63,447.87/87,558.78 = 34,767.60/x
  3. Step 3: Cross multiply
    63,447.87x = 87,558.78 × 34,767.60
  4. Step 4: Simplify right side
    63,447.87x = 3,044,208,639.53
  5. Step 5: Solve for x
    x = 3,044,208,639.53/63,447.87
  6. Step 6: Final answer
    x = 47,979.68

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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.