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Finding the Fourth Proportional to 61,839.72, 92,639.70 and 48,627

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Solution

The fourth proportional to 61,839.72, 92,639.70 and 48,627 is: 72,846.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,839.72 : 92,639.70 = 48,627 : x
  2. Step 2: Convert to fraction form
    61,839.72/92,639.70 = 48,627/x
  3. Step 3: Cross multiply
    61,839.72x = 92,639.70 × 48,627
  4. Step 4: Simplify right side
    61,839.72x = 4,504,790,691.90
  5. Step 5: Solve for x
    x = 4,504,790,691.90/61,839.72
  6. Step 6: Final answer
    x = 72,846.23

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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.