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Finding the Fourth Proportional to 25,591.51, 38,398.42 and 8,963.47

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Solution

The fourth proportional to 25,591.51, 38,398.42 and 8,963.47 is: 13,449.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,591.51 : 38,398.42 = 8,963.47 : x
  2. Step 2: Convert to fraction form
    25,591.51/38,398.42 = 8,963.47/x
  3. Step 3: Cross multiply
    25,591.51x = 38,398.42 × 8,963.47
  4. Step 4: Simplify right side
    25,591.51x = 344,183,085.72
  5. Step 5: Solve for x
    x = 344,183,085.72/25,591.51
  6. Step 6: Final answer
    x = 13,449.11

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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.