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Finding the Fourth Proportional to 2,691.82, 3,715.85 and 2,523.68

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Solution

The fourth proportional to 2,691.82, 3,715.85 and 2,523.68 is: 3,483.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.82 : 3,715.85 = 2,523.68 : x
  2. Step 2: Convert to fraction form
    2,691.82/3,715.85 = 2,523.68/x
  3. Step 3: Cross multiply
    2,691.82x = 3,715.85 × 2,523.68
  4. Step 4: Simplify right side
    2,691.82x = 9,377,617.99
  5. Step 5: Solve for x
    x = 9,377,617.99/2,691.82
  6. Step 6: Final answer
    x = 3,483.74

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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.