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Finding the Fourth Proportional to 9,230.60, 12,734.61 and 5,687.66

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Solution

The fourth proportional to 9,230.60, 12,734.61 and 5,687.66 is: 7,846.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,230.60 : 12,734.61 = 5,687.66 : x
  2. Step 2: Convert to fraction form
    9,230.60/12,734.61 = 5,687.66/x
  3. Step 3: Cross multiply
    9,230.60x = 12,734.61 × 5,687.66
  4. Step 4: Simplify right side
    9,230.60x = 72,430,131.91
  5. Step 5: Solve for x
    x = 72,430,131.91/9,230.60
  6. Step 6: Final answer
    x = 7,846.74

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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.