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Finding the Fourth Proportional to 8,863.10, 13,296.95 and 3,316.87

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Solution

The fourth proportional to 8,863.10, 13,296.95 and 3,316.87 is: 4,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.10 : 13,296.95 = 3,316.87 : x
  2. Step 2: Convert to fraction form
    8,863.10/13,296.95 = 3,316.87/x
  3. Step 3: Cross multiply
    8,863.10x = 13,296.95 × 3,316.87
  4. Step 4: Simplify right side
    8,863.10x = 44,104,217.16
  5. Step 5: Solve for x
    x = 44,104,217.16/8,863.10
  6. Step 6: Final answer
    x = 4,976.16

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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.