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Finding the Fourth Proportional to 18,306.96, 25,264.90 and 10,349.26

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Solution

The fourth proportional to 18,306.96, 25,264.90 and 10,349.26 is: 14,282.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.96 : 25,264.90 = 10,349.26 : x
  2. Step 2: Convert to fraction form
    18,306.96/25,264.90 = 10,349.26/x
  3. Step 3: Cross multiply
    18,306.96x = 25,264.90 × 10,349.26
  4. Step 4: Simplify right side
    18,306.96x = 261,473,018.97
  5. Step 5: Solve for x
    x = 261,473,018.97/18,306.96
  6. Step 6: Final answer
    x = 14,282.71

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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.