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Finding the Fourth Proportional to 8,312.33, 12,471.53 and 3,926.49

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Solution

The fourth proportional to 8,312.33, 12,471.53 and 3,926.49 is: 5,891.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.33 : 12,471.53 = 3,926.49 : x
  2. Step 2: Convert to fraction form
    8,312.33/12,471.53 = 3,926.49/x
  3. Step 3: Cross multiply
    8,312.33x = 12,471.53 × 3,926.49
  4. Step 4: Simplify right side
    8,312.33x = 48,969,318.20
  5. Step 5: Solve for x
    x = 48,969,318.20/8,312.33
  6. Step 6: Final answer
    x = 5,891.17

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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.