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Finding the Fourth Proportional to 8,974.80, 13,522.03 and 8,266.32

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Solution

The fourth proportional to 8,974.80, 13,522.03 and 8,266.32 is: 12,454.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.80 : 13,522.03 = 8,266.32 : x
  2. Step 2: Convert to fraction form
    8,974.80/13,522.03 = 8,266.32/x
  3. Step 3: Cross multiply
    8,974.80x = 13,522.03 × 8,266.32
  4. Step 4: Simplify right side
    8,974.80x = 111,777,427.03
  5. Step 5: Solve for x
    x = 111,777,427.03/8,974.80
  6. Step 6: Final answer
    x = 12,454.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.