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Finding the Fourth Proportional to 8,766.80, 12,096.84 and 5,230.16

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Solution

The fourth proportional to 8,766.80, 12,096.84 and 5,230.16 is: 7,216.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.80 : 12,096.84 = 5,230.16 : x
  2. Step 2: Convert to fraction form
    8,766.80/12,096.84 = 5,230.16/x
  3. Step 3: Cross multiply
    8,766.80x = 12,096.84 × 5,230.16
  4. Step 4: Simplify right side
    8,766.80x = 63,268,408.69
  5. Step 5: Solve for x
    x = 63,268,408.69/8,766.80
  6. Step 6: Final answer
    x = 7,216.82

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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.