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Finding the Fourth Proportional to 8,967.78, 13,446.81 and 6,882.57

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Solution

The fourth proportional to 8,967.78, 13,446.81 and 6,882.57 is: 10,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,967.78 : 13,446.81 = 6,882.57 : x
  2. Step 2: Convert to fraction form
    8,967.78/13,446.81 = 6,882.57/x
  3. Step 3: Cross multiply
    8,967.78x = 13,446.81 × 6,882.57
  4. Step 4: Simplify right side
    8,967.78x = 92,548,611.10
  5. Step 5: Solve for x
    x = 92,548,611.10/8,967.78
  6. Step 6: Final answer
    x = 10,320.13

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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.