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Finding the Fourth Proportional to 5,600.61, 7,728.84 and 3,242.70

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Solution

The fourth proportional to 5,600.61, 7,728.84 and 3,242.70 is: 4,474.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,600.61 : 7,728.84 = 3,242.70 : x
  2. Step 2: Convert to fraction form
    5,600.61/7,728.84 = 3,242.70/x
  3. Step 3: Cross multiply
    5,600.61x = 7,728.84 × 3,242.70
  4. Step 4: Simplify right side
    5,600.61x = 25,062,309.47
  5. Step 5: Solve for x
    x = 25,062,309.47/5,600.61
  6. Step 6: Final answer
    x = 4,474.92

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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.