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Finding the Fourth Proportional to 8,867.68, 13,300.25 and 3,530.86

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Solution

The fourth proportional to 8,867.68, 13,300.25 and 3,530.86 is: 5,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.68 : 13,300.25 = 3,530.86 : x
  2. Step 2: Convert to fraction form
    8,867.68/13,300.25 = 3,530.86/x
  3. Step 3: Cross multiply
    8,867.68x = 13,300.25 × 3,530.86
  4. Step 4: Simplify right side
    8,867.68x = 46,961,320.72
  5. Step 5: Solve for x
    x = 46,961,320.72/8,867.68
  6. Step 6: Final answer
    x = 5,295.78

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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.