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Finding the Fourth Proportional to 7,082.53, 9,773.94 and 3,938.92

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Solution

The fourth proportional to 7,082.53, 9,773.94 and 3,938.92 is: 5,435.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,082.53 : 9,773.94 = 3,938.92 : x
  2. Step 2: Convert to fraction form
    7,082.53/9,773.94 = 3,938.92/x
  3. Step 3: Cross multiply
    7,082.53x = 9,773.94 × 3,938.92
  4. Step 4: Simplify right side
    7,082.53x = 38,498,767.74
  5. Step 5: Solve for x
    x = 38,498,767.74/7,082.53
  6. Step 6: Final answer
    x = 5,435.74

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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.