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Finding the Fourth Proportional to 8,864.55, 12,240.99 and 8,444.43

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Solution

The fourth proportional to 8,864.55, 12,240.99 and 8,444.43 is: 11,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.55 : 12,240.99 = 8,444.43 : x
  2. Step 2: Convert to fraction form
    8,864.55/12,240.99 = 8,444.43/x
  3. Step 3: Cross multiply
    8,864.55x = 12,240.99 × 8,444.43
  4. Step 4: Simplify right side
    8,864.55x = 103,368,183.19
  5. Step 5: Solve for x
    x = 103,368,183.19/8,864.55
  6. Step 6: Final answer
    x = 11,660.85

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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.