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Finding the Fourth Proportional to 5,587.68, 8,375.68 and 3,118.88

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Solution

The fourth proportional to 5,587.68, 8,375.68 and 3,118.88 is: 4,675.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.68 : 8,375.68 = 3,118.88 : x
  2. Step 2: Convert to fraction form
    5,587.68/8,375.68 = 3,118.88/x
  3. Step 3: Cross multiply
    5,587.68x = 8,375.68 × 3,118.88
  4. Step 4: Simplify right side
    5,587.68x = 26,122,740.84
  5. Step 5: Solve for x
    x = 26,122,740.84/5,587.68
  6. Step 6: Final answer
    x = 4,675.06

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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.