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Finding the Fourth Proportional to 7,691.69, 10,614.52 and 4,154.90

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Solution

The fourth proportional to 7,691.69, 10,614.52 and 4,154.90 is: 5,733.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.69 : 10,614.52 = 4,154.90 : x
  2. Step 2: Convert to fraction form
    7,691.69/10,614.52 = 4,154.90/x
  3. Step 3: Cross multiply
    7,691.69x = 10,614.52 × 4,154.90
  4. Step 4: Simplify right side
    7,691.69x = 44,102,216.08
  5. Step 5: Solve for x
    x = 44,102,216.08/7,691.69
  6. Step 6: Final answer
    x = 5,733.75

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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.