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Finding the Fourth Proportional to 8,274.66, 12,391.74 and 5,344.08

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Solution

The fourth proportional to 8,274.66, 12,391.74 and 5,344.08 is: 8,003.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,274.66 : 12,391.74 = 5,344.08 : x
  2. Step 2: Convert to fraction form
    8,274.66/12,391.74 = 5,344.08/x
  3. Step 3: Cross multiply
    8,274.66x = 12,391.74 × 5,344.08
  4. Step 4: Simplify right side
    8,274.66x = 66,222,449.90
  5. Step 5: Solve for x
    x = 66,222,449.90/8,274.66
  6. Step 6: Final answer
    x = 8,003.04

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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.