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Finding the Fourth Proportional to 25,871.97, 38,812.90 and 8,337.09

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Solution

The fourth proportional to 25,871.97, 38,812.90 and 8,337.09 is: 12,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,871.97 : 38,812.90 = 8,337.09 : x
  2. Step 2: Convert to fraction form
    25,871.97/38,812.90 = 8,337.09/x
  3. Step 3: Cross multiply
    25,871.97x = 38,812.90 × 8,337.09
  4. Step 4: Simplify right side
    25,871.97x = 323,586,446.40
  5. Step 5: Solve for x
    x = 323,586,446.40/25,871.97
  6. Step 6: Final answer
    x = 12,507.22

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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.