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Finding the Fourth Proportional to 18,502.80, 25,532.53 and 10,436.74

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Solution

The fourth proportional to 18,502.80, 25,532.53 and 10,436.74 is: 14,401.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.80 : 25,532.53 = 10,436.74 : x
  2. Step 2: Convert to fraction form
    18,502.80/25,532.53 = 10,436.74/x
  3. Step 3: Cross multiply
    18,502.80x = 25,532.53 × 10,436.74
  4. Step 4: Simplify right side
    18,502.80x = 266,476,377.15
  5. Step 5: Solve for x
    x = 266,476,377.15/18,502.80
  6. Step 6: Final answer
    x = 14,401.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.