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Finding the Fourth Proportional to 67,841.32, 101,766.86 and 17,920.77

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Solution

The fourth proportional to 67,841.32, 101,766.86 and 17,920.77 is: 26,882.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,841.32 : 101,766.86 = 17,920.77 : x
  2. Step 2: Convert to fraction form
    67,841.32/101,766.86 = 17,920.77/x
  3. Step 3: Cross multiply
    67,841.32x = 101,766.86 × 17,920.77
  4. Step 4: Simplify right side
    67,841.32x = 1,823,740,491.68
  5. Step 5: Solve for x
    x = 1,823,740,491.68/67,841.32
  6. Step 6: Final answer
    x = 26,882.44

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1.5x scale

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.