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Finding the Fourth Proportional to 42,376, 58,478.88 and 23,516.16

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Solution

The fourth proportional to 42,376, 58,478.88 and 23,516.16 is: 32,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,376 : 58,478.88 = 23,516.16 : x
  2. Step 2: Convert to fraction form
    42,376/58,478.88 = 23,516.16/x
  3. Step 3: Cross multiply
    42,376x = 58,478.88 × 23,516.16
  4. Step 4: Simplify right side
    42,376x = 1,375,198,698.70
  5. Step 5: Solve for x
    x = 1,375,198,698.70/42,376
  6. Step 6: Final answer
    x = 32,452.30

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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.