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Finding the Fourth Proportional to 8,867.64, 12,148.61 and 8,535.27

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Solution

The fourth proportional to 8,867.64, 12,148.61 and 8,535.27 is: 11,693.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.64 : 12,148.61 = 8,535.27 : x
  2. Step 2: Convert to fraction form
    8,867.64/12,148.61 = 8,535.27/x
  3. Step 3: Cross multiply
    8,867.64x = 12,148.61 × 8,535.27
  4. Step 4: Simplify right side
    8,867.64x = 103,691,605.73
  5. Step 5: Solve for x
    x = 103,691,605.73/8,867.64
  6. Step 6: Final answer
    x = 11,693.26

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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.