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Finding the Fourth Proportional to 25,659.54, 38,489.28 and 13,948.14

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Solution

The fourth proportional to 25,659.54, 38,489.28 and 13,948.14 is: 20,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,659.54 : 38,489.28 = 13,948.14 : x
  2. Step 2: Convert to fraction form
    25,659.54/38,489.28 = 13,948.14/x
  3. Step 3: Cross multiply
    25,659.54x = 38,489.28 × 13,948.14
  4. Step 4: Simplify right side
    25,659.54x = 536,853,865.94
  5. Step 5: Solve for x
    x = 536,853,865.94/25,659.54
  6. Step 6: Final answer
    x = 20,922.19

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Similar ratio
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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.