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Finding the Fourth Proportional to 5,972.55, 8,242.11 and 3,320.19

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Solution

The fourth proportional to 5,972.55, 8,242.11 and 3,320.19 is: 4,581.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,972.55 : 8,242.11 = 3,320.19 : x
  2. Step 2: Convert to fraction form
    5,972.55/8,242.11 = 3,320.19/x
  3. Step 3: Cross multiply
    5,972.55x = 8,242.11 × 3,320.19
  4. Step 4: Simplify right side
    5,972.55x = 27,365,371.20
  5. Step 5: Solve for x
    x = 27,365,371.20/5,972.55
  6. Step 6: Final answer
    x = 4,581.86

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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.