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Finding the Fourth Proportional to 7,589.61, 11,377.17 and 2,655.99

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Solution

The fourth proportional to 7,589.61, 11,377.17 and 2,655.99 is: 3,981.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,589.61 : 11,377.17 = 2,655.99 : x
  2. Step 2: Convert to fraction form
    7,589.61/11,377.17 = 2,655.99/x
  3. Step 3: Cross multiply
    7,589.61x = 11,377.17 × 2,655.99
  4. Step 4: Simplify right side
    7,589.61x = 30,217,649.75
  5. Step 5: Solve for x
    x = 30,217,649.75/7,589.61
  6. Step 6: Final answer
    x = 3,981.45

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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.