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Finding the Fourth Proportional to 25,591.91, 38,391.46 and 8,948.17

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Solution

The fourth proportional to 25,591.91, 38,391.46 and 8,948.17 is: 13,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,591.91 : 38,391.46 = 8,948.17 : x
  2. Step 2: Convert to fraction form
    25,591.91/38,391.46 = 8,948.17/x
  3. Step 3: Cross multiply
    25,591.91x = 38,391.46 × 8,948.17
  4. Step 4: Simplify right side
    25,591.91x = 343,533,192.28
  5. Step 5: Solve for x
    x = 343,533,192.28/25,591.91
  6. Step 6: Final answer
    x = 13,423.51

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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.