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Finding the Fourth Proportional to 8,759.80, 13,149.06 and 4,863.16

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Solution

The fourth proportional to 8,759.80, 13,149.06 and 4,863.16 is: 7,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.80 : 13,149.06 = 4,863.16 : x
  2. Step 2: Convert to fraction form
    8,759.80/13,149.06 = 4,863.16/x
  3. Step 3: Cross multiply
    8,759.80x = 13,149.06 × 4,863.16
  4. Step 4: Simplify right side
    8,759.80x = 63,945,982.63
  5. Step 5: Solve for x
    x = 63,945,982.63/8,759.80
  6. Step 6: Final answer
    x = 7,299.94

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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.