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Finding the Fourth Proportional to 71,201.93, 98,259.17 and 38,936.69

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Solution

The fourth proportional to 71,201.93, 98,259.17 and 38,936.69 is: 53,732.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,201.93 : 98,259.17 = 38,936.69 : x
  2. Step 2: Convert to fraction form
    71,201.93/98,259.17 = 38,936.69/x
  3. Step 3: Cross multiply
    71,201.93x = 98,259.17 × 38,936.69
  4. Step 4: Simplify right side
    71,201.93x = 3,825,886,841.95
  5. Step 5: Solve for x
    x = 3,825,886,841.95/71,201.93
  6. Step 6: Final answer
    x = 53,732.91

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1.5x scale

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.