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Finding the Fourth Proportional to 8,232.60, 12,348.90 and 7,066.20

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Solution

The fourth proportional to 8,232.60, 12,348.90 and 7,066.20 is: 10,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,232.60 : 12,348.90 = 7,066.20 : x
  2. Step 2: Convert to fraction form
    8,232.60/12,348.90 = 7,066.20/x
  3. Step 3: Cross multiply
    8,232.60x = 12,348.90 × 7,066.20
  4. Step 4: Simplify right side
    8,232.60x = 87,259,797.18
  5. Step 5: Solve for x
    x = 87,259,797.18/8,232.60
  6. Step 6: Final answer
    x = 10,599.30

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Similar ratio
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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.