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Finding the Fourth Proportional to 8,877.99, 12,251.67 and 4,899.11

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Solution

The fourth proportional to 8,877.99, 12,251.67 and 4,899.11 is: 6,760.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.99 : 12,251.67 = 4,899.11 : x
  2. Step 2: Convert to fraction form
    8,877.99/12,251.67 = 4,899.11/x
  3. Step 3: Cross multiply
    8,877.99x = 12,251.67 × 4,899.11
  4. Step 4: Simplify right side
    8,877.99x = 60,022,217.76
  5. Step 5: Solve for x
    x = 60,022,217.76/8,877.99
  6. Step 6: Final answer
    x = 6,760.79

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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.