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Finding the Fourth Proportional to 29,318.48, 43,977.72 and 8,258.52

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Solution

The fourth proportional to 29,318.48, 43,977.72 and 8,258.52 is: 12,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,318.48 : 43,977.72 = 8,258.52 : x
  2. Step 2: Convert to fraction form
    29,318.48/43,977.72 = 8,258.52/x
  3. Step 3: Cross multiply
    29,318.48x = 43,977.72 × 8,258.52
  4. Step 4: Simplify right side
    29,318.48x = 363,190,880.17
  5. Step 5: Solve for x
    x = 363,190,880.17/29,318.48
  6. Step 6: Final answer
    x = 12,387.78

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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.