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Finding the Fourth Proportional to 9,475.60, 14,143.22 and 8,891.92

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Solution

The fourth proportional to 9,475.60, 14,143.22 and 8,891.92 is: 13,272.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,475.60 : 14,143.22 = 8,891.92 : x
  2. Step 2: Convert to fraction form
    9,475.60/14,143.22 = 8,891.92/x
  3. Step 3: Cross multiply
    9,475.60x = 14,143.22 × 8,891.92
  4. Step 4: Simplify right side
    9,475.60x = 125,760,380.78
  5. Step 5: Solve for x
    x = 125,760,380.78/9,475.60
  6. Step 6: Final answer
    x = 13,272.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.