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Finding the Fourth Proportional to 8,967.87, 12,375.48 and 4,988.49

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Solution

The fourth proportional to 8,967.87, 12,375.48 and 4,988.49 is: 6,884.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,967.87 : 12,375.48 = 4,988.49 : x
  2. Step 2: Convert to fraction form
    8,967.87/12,375.48 = 4,988.49/x
  3. Step 3: Cross multiply
    8,967.87x = 12,375.48 × 4,988.49
  4. Step 4: Simplify right side
    8,967.87x = 61,734,958.23
  5. Step 5: Solve for x
    x = 61,734,958.23/8,967.87
  6. Step 6: Final answer
    x = 6,884.02

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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.