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Finding the Fourth Proportional to 67,959.11, 101,978.76 and 25,874.62

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Solution

The fourth proportional to 67,959.11, 101,978.76 and 25,874.62 is: 38,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,959.11 : 101,978.76 = 25,874.62 : x
  2. Step 2: Convert to fraction form
    67,959.11/101,978.76 = 25,874.62/x
  3. Step 3: Cross multiply
    67,959.11x = 101,978.76 × 25,874.62
  4. Step 4: Simplify right side
    67,959.11x = 2,638,661,663.07
  5. Step 5: Solve for x
    x = 2,638,661,663.07/67,959.11
  6. Step 6: Final answer
    x = 38,827.20

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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.