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Finding the Fourth Proportional to 3,986.67, 5,502.99 and 2,414.76

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Solution

The fourth proportional to 3,986.67, 5,502.99 and 2,414.76 is: 3,333.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.67 : 5,502.99 = 2,414.76 : x
  2. Step 2: Convert to fraction form
    3,986.67/5,502.99 = 2,414.76/x
  3. Step 3: Cross multiply
    3,986.67x = 5,502.99 × 2,414.76
  4. Step 4: Simplify right side
    3,986.67x = 13,288,400.13
  5. Step 5: Solve for x
    x = 13,288,400.13/3,986.67
  6. Step 6: Final answer
    x = 3,333.21

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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.