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Finding the Fourth Proportional to 5,687.80, 8,531.70 and 2,403.26

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Solution

The fourth proportional to 5,687.80, 8,531.70 and 2,403.26 is: 3,604.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.80 : 8,531.70 = 2,403.26 : x
  2. Step 2: Convert to fraction form
    5,687.80/8,531.70 = 2,403.26/x
  3. Step 3: Cross multiply
    5,687.80x = 8,531.70 × 2,403.26
  4. Step 4: Simplify right side
    5,687.80x = 20,503,893.34
  5. Step 5: Solve for x
    x = 20,503,893.34/5,687.80
  6. Step 6: Final answer
    x = 3,604.89

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Similar ratio
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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.