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Finding the Fourth Proportional to 18,314.12, 27,454.98 and 8,948.90

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Solution

The fourth proportional to 18,314.12, 27,454.98 and 8,948.90 is: 13,415.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,314.12 : 27,454.98 = 8,948.90 : x
  2. Step 2: Convert to fraction form
    18,314.12/27,454.98 = 8,948.90/x
  3. Step 3: Cross multiply
    18,314.12x = 27,454.98 × 8,948.90
  4. Step 4: Simplify right side
    18,314.12x = 245,691,870.52
  5. Step 5: Solve for x
    x = 245,691,870.52/18,314.12
  6. Step 6: Final answer
    x = 13,415.43

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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.