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Finding the Fourth Proportional to 8,867.39, 12,148.25 and 8,535.02

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Solution

The fourth proportional to 8,867.39, 12,148.25 and 8,535.02 is: 11,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.39 : 12,148.25 = 8,535.02 : x
  2. Step 2: Convert to fraction form
    8,867.39/12,148.25 = 8,535.02/x
  3. Step 3: Cross multiply
    8,867.39x = 12,148.25 × 8,535.02
  4. Step 4: Simplify right side
    8,867.39x = 103,685,453.30
  5. Step 5: Solve for x
    x = 103,685,453.30/8,867.39
  6. Step 6: Final answer
    x = 11,692.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.