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Finding the Fourth Proportional to 49,886.87, 68,841.12 and 28,373.71

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Solution

The fourth proportional to 49,886.87, 68,841.12 and 28,373.71 is: 39,154.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,886.87 : 68,841.12 = 28,373.71 : x
  2. Step 2: Convert to fraction form
    49,886.87/68,841.12 = 28,373.71/x
  3. Step 3: Cross multiply
    49,886.87x = 68,841.12 × 28,373.71
  4. Step 4: Simplify right side
    49,886.87x = 1,953,277,974.96
  5. Step 5: Solve for x
    x = 1,953,277,974.96/49,886.87
  6. Step 6: Final answer
    x = 39,154.15

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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.