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Finding the Fourth Proportional to 44,559.92, 61,513.12 and 38,486

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Solution

The fourth proportional to 44,559.92, 61,513.12 and 38,486 is: 53,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,559.92 : 61,513.12 = 38,486 : x
  2. Step 2: Convert to fraction form
    44,559.92/61,513.12 = 38,486/x
  3. Step 3: Cross multiply
    44,559.92x = 61,513.12 × 38,486
  4. Step 4: Simplify right side
    44,559.92x = 2,367,393,936.32
  5. Step 5: Solve for x
    x = 2,367,393,936.32/44,559.92
  6. Step 6: Final answer
    x = 53,128.33

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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.