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Finding the Fourth Proportional to 6,479.73, 9,672.28 and 5,561.19

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Solution

The fourth proportional to 6,479.73, 9,672.28 and 5,561.19 is: 8,301.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.73 : 9,672.28 = 5,561.19 : x
  2. Step 2: Convert to fraction form
    6,479.73/9,672.28 = 5,561.19/x
  3. Step 3: Cross multiply
    6,479.73x = 9,672.28 × 5,561.19
  4. Step 4: Simplify right side
    6,479.73x = 53,789,372.91
  5. Step 5: Solve for x
    x = 53,789,372.91/6,479.73
  6. Step 6: Final answer
    x = 8,301.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.