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Finding the Fourth Proportional to 12,671.46, 17,486.49 and 7,082.46

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Solution

The fourth proportional to 12,671.46, 17,486.49 and 7,082.46 is: 9,773.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.46 : 17,486.49 = 7,082.46 : x
  2. Step 2: Convert to fraction form
    12,671.46/17,486.49 = 7,082.46/x
  3. Step 3: Cross multiply
    12,671.46x = 17,486.49 × 7,082.46
  4. Step 4: Simplify right side
    12,671.46x = 123,847,365.97
  5. Step 5: Solve for x
    x = 123,847,365.97/12,671.46
  6. Step 6: Final answer
    x = 9,773.73

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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.