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Finding the Fourth Proportional to 8,265.11, 12,366.68 and 4,921.13

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Solution

The fourth proportional to 8,265.11, 12,366.68 and 4,921.13 is: 7,363.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265.11 : 12,366.68 = 4,921.13 : x
  2. Step 2: Convert to fraction form
    8,265.11/12,366.68 = 4,921.13/x
  3. Step 3: Cross multiply
    8,265.11x = 12,366.68 × 4,921.13
  4. Step 4: Simplify right side
    8,265.11x = 60,858,039.95
  5. Step 5: Solve for x
    x = 60,858,039.95/8,265.11
  6. Step 6: Final answer
    x = 7,363.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.