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Finding the Fourth Proportional to 25,911.97, 38,869.17 and 8,383.17

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Solution

The fourth proportional to 25,911.97, 38,869.17 and 8,383.17 is: 12,575.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,911.97 : 38,869.17 = 8,383.17 : x
  2. Step 2: Convert to fraction form
    25,911.97/38,869.17 = 8,383.17/x
  3. Step 3: Cross multiply
    25,911.97x = 38,869.17 × 8,383.17
  4. Step 4: Simplify right side
    25,911.97x = 325,846,665.52
  5. Step 5: Solve for x
    x = 325,846,665.52/25,911.97
  6. Step 6: Final answer
    x = 12,575.14

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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.