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Finding the Fourth Proportional to 5,806.48, 8,709.72 and 4,082.80

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Solution

The fourth proportional to 5,806.48, 8,709.72 and 4,082.80 is: 6,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,806.48 : 8,709.72 = 4,082.80 : x
  2. Step 2: Convert to fraction form
    5,806.48/8,709.72 = 4,082.80/x
  3. Step 3: Cross multiply
    5,806.48x = 8,709.72 × 4,082.80
  4. Step 4: Simplify right side
    5,806.48x = 35,560,044.82
  5. Step 5: Solve for x
    x = 35,560,044.82/5,806.48
  6. Step 6: Final answer
    x = 6,124.20

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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.