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Finding the Fourth Proportional to 25,687.53, 38,494.04 and 12,525.03

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Solution

The fourth proportional to 25,687.53, 38,494.04 and 12,525.03 is: 18,769.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,687.53 : 38,494.04 = 12,525.03 : x
  2. Step 2: Convert to fraction form
    25,687.53/38,494.04 = 12,525.03/x
  3. Step 3: Cross multiply
    25,687.53x = 38,494.04 × 12,525.03
  4. Step 4: Simplify right side
    25,687.53x = 482,138,943.20
  5. Step 5: Solve for x
    x = 482,138,943.20/25,687.53
  6. Step 6: Final answer
    x = 18,769.38

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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.