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Finding the Fourth Proportional to 8,797.17, 12,140.20 and 5,020.85

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Solution

The fourth proportional to 8,797.17, 12,140.20 and 5,020.85 is: 6,928.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.17 : 12,140.20 = 5,020.85 : x
  2. Step 2: Convert to fraction form
    8,797.17/12,140.20 = 5,020.85/x
  3. Step 3: Cross multiply
    8,797.17x = 12,140.20 × 5,020.85
  4. Step 4: Simplify right side
    8,797.17x = 60,954,037.36
  5. Step 5: Solve for x
    x = 60,954,037.36/8,797.17
  6. Step 6: Final answer
    x = 6,928.82

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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.