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Finding the Fourth Proportional to 8,863.48, 13,290.60 and 3,934.60

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Solution

The fourth proportional to 8,863.48, 13,290.60 and 3,934.60 is: 5,899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.48 : 13,290.60 = 3,934.60 : x
  2. Step 2: Convert to fraction form
    8,863.48/13,290.60 = 3,934.60/x
  3. Step 3: Cross multiply
    8,863.48x = 13,290.60 × 3,934.60
  4. Step 4: Simplify right side
    8,863.48x = 52,293,194.76
  5. Step 5: Solve for x
    x = 52,293,194.76/8,863.48
  6. Step 6: Final answer
    x = 5,899.85

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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.