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Finding the Fourth Proportional to 6,721.70, 10,082.55 and 6,592.10

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Solution

The fourth proportional to 6,721.70, 10,082.55 and 6,592.10 is: 9,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.70 : 10,082.55 = 6,592.10 : x
  2. Step 2: Convert to fraction form
    6,721.70/10,082.55 = 6,592.10/x
  3. Step 3: Cross multiply
    6,721.70x = 10,082.55 × 6,592.10
  4. Step 4: Simplify right side
    6,721.70x = 66,465,177.86
  5. Step 5: Solve for x
    x = 66,465,177.86/6,721.70
  6. Step 6: Final answer
    x = 9,888.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.