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Finding the Fourth Proportional to 5,487.33, 8,211.84 and 4,488.60

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Solution

The fourth proportional to 5,487.33, 8,211.84 and 4,488.60 is: 6,717.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.33 : 8,211.84 = 4,488.60 : x
  2. Step 2: Convert to fraction form
    5,487.33/8,211.84 = 4,488.60/x
  3. Step 3: Cross multiply
    5,487.33x = 8,211.84 × 4,488.60
  4. Step 4: Simplify right side
    5,487.33x = 36,859,665.02
  5. Step 5: Solve for x
    x = 36,859,665.02/5,487.33
  6. Step 6: Final answer
    x = 6,717.23

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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.