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Finding the Fourth Proportional to 9,170.73, 12,650.76 and 5,807.61

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Solution

The fourth proportional to 9,170.73, 12,650.76 and 5,807.61 is: 8,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.73 : 12,650.76 = 5,807.61 : x
  2. Step 2: Convert to fraction form
    9,170.73/12,650.76 = 5,807.61/x
  3. Step 3: Cross multiply
    9,170.73x = 12,650.76 × 5,807.61
  4. Step 4: Simplify right side
    9,170.73x = 73,470,680.28
  5. Step 5: Solve for x
    x = 73,470,680.28/9,170.73
  6. Step 6: Final answer
    x = 8,011.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.