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Finding the Fourth Proportional to 5,689.88, 8,531.56 and 2,354.16

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Solution

The fourth proportional to 5,689.88, 8,531.56 and 2,354.16 is: 3,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.88 : 8,531.56 = 2,354.16 : x
  2. Step 2: Convert to fraction form
    5,689.88/8,531.56 = 2,354.16/x
  3. Step 3: Cross multiply
    5,689.88x = 8,531.56 × 2,354.16
  4. Step 4: Simplify right side
    5,689.88x = 20,084,692.23
  5. Step 5: Solve for x
    x = 20,084,692.23/5,689.88
  6. Step 6: Final answer
    x = 3,529.90

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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.