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Finding the Fourth Proportional to 8,841.81, 12,201.71 and 4,863.20

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Solution

The fourth proportional to 8,841.81, 12,201.71 and 4,863.20 is: 6,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,841.81 : 12,201.71 = 4,863.20 : x
  2. Step 2: Convert to fraction form
    8,841.81/12,201.71 = 4,863.20/x
  3. Step 3: Cross multiply
    8,841.81x = 12,201.71 × 4,863.20
  4. Step 4: Simplify right side
    8,841.81x = 59,339,270.75
  5. Step 5: Solve for x
    x = 59,339,270.75/8,841.81
  6. Step 6: Final answer
    x = 6,711.21

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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.