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Finding the Fourth Proportional to 67,265.38, 92,826.22 and 38,987.47

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Solution

The fourth proportional to 67,265.38, 92,826.22 and 38,987.47 is: 53,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,265.38 : 92,826.22 = 38,987.47 : x
  2. Step 2: Convert to fraction form
    67,265.38/92,826.22 = 38,987.47/x
  3. Step 3: Cross multiply
    67,265.38x = 92,826.22 × 38,987.47
  4. Step 4: Simplify right side
    67,265.38x = 3,619,059,467.46
  5. Step 5: Solve for x
    x = 3,619,059,467.46/67,265.38
  6. Step 6: Final answer
    x = 53,802.71

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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.