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Finding the Fourth Proportional to 17,061.30, 25,611.15 and 13,182.90

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Solution

The fourth proportional to 17,061.30, 25,611.15 and 13,182.90 is: 19,789.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,061.30 : 25,611.15 = 13,182.90 : x
  2. Step 2: Convert to fraction form
    17,061.30/25,611.15 = 13,182.90/x
  3. Step 3: Cross multiply
    17,061.30x = 25,611.15 × 13,182.90
  4. Step 4: Simplify right side
    17,061.30x = 337,629,229.34
  5. Step 5: Solve for x
    x = 337,629,229.34/17,061.30
  6. Step 6: Final answer
    x = 19,789.19

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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.