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Finding the Fourth Proportional to 25,862.80, 38,823.40 and 17,114.80

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Solution

The fourth proportional to 25,862.80, 38,823.40 and 17,114.80 is: 25,691.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,862.80 : 38,823.40 = 17,114.80 : x
  2. Step 2: Convert to fraction form
    25,862.80/38,823.40 = 17,114.80/x
  3. Step 3: Cross multiply
    25,862.80x = 38,823.40 × 17,114.80
  4. Step 4: Simplify right side
    25,862.80x = 664,454,726.32
  5. Step 5: Solve for x
    x = 664,454,726.32/25,862.80
  6. Step 6: Final answer
    x = 25,691.52

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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.