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Finding the Fourth Proportional to 3,726.47, 5,589.69 and 953.14

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Solution

The fourth proportional to 3,726.47, 5,589.69 and 953.14 is: 1,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.47 : 5,589.69 = 953.14 : x
  2. Step 2: Convert to fraction form
    3,726.47/5,589.69 = 953.14/x
  3. Step 3: Cross multiply
    3,726.47x = 5,589.69 × 953.14
  4. Step 4: Simplify right side
    3,726.47x = 5,327,757.13
  5. Step 5: Solve for x
    x = 5,327,757.13/3,726.47
  6. Step 6: Final answer
    x = 1,429.71

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Similar ratio
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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.