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Finding the Fourth Proportional to 5,559.54, 7,680.17 and 4,439.00

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Solution

The fourth proportional to 5,559.54, 7,680.17 and 4,439.00 is: 6,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,559.54 : 7,680.17 = 4,439.00 : x
  2. Step 2: Convert to fraction form
    5,559.54/7,680.17 = 4,439.00/x
  3. Step 3: Cross multiply
    5,559.54x = 7,680.17 × 4,439.00
  4. Step 4: Simplify right side
    5,559.54x = 34,092,279.96
  5. Step 5: Solve for x
    x = 34,092,279.96/5,559.54
  6. Step 6: Final answer
    x = 6,132.22

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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.