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Finding the Fourth Proportional to 67,609.70, 101,414.55 and 17,689.70

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Solution

The fourth proportional to 67,609.70, 101,414.55 and 17,689.70 is: 26,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,609.70 : 101,414.55 = 17,689.70 : x
  2. Step 2: Convert to fraction form
    67,609.70/101,414.55 = 17,689.70/x
  3. Step 3: Cross multiply
    67,609.70x = 101,414.55 × 17,689.70
  4. Step 4: Simplify right side
    67,609.70x = 1,793,992,965.14
  5. Step 5: Solve for x
    x = 1,793,992,965.14/67,609.70
  6. Step 6: Final answer
    x = 26,534.55

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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.