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Finding the Fourth Proportional to 5,561.92, 7,659.12 and 4,972.24

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Solution

The fourth proportional to 5,561.92, 7,659.12 and 4,972.24 is: 6,847.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,561.92 : 7,659.12 = 4,972.24 : x
  2. Step 2: Convert to fraction form
    5,561.92/7,659.12 = 4,972.24/x
  3. Step 3: Cross multiply
    5,561.92x = 7,659.12 × 4,972.24
  4. Step 4: Simplify right side
    5,561.92x = 38,082,982.83
  5. Step 5: Solve for x
    x = 38,082,982.83/5,561.92
  6. Step 6: Final answer
    x = 6,847.09

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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.