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Finding the Fourth Proportional to 8,833.60, 13,175.98 and 8,221.24

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Solution

The fourth proportional to 8,833.60, 13,175.98 and 8,221.24 is: 12,262.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,833.60 : 13,175.98 = 8,221.24 : x
  2. Step 2: Convert to fraction form
    8,833.60/13,175.98 = 8,221.24/x
  3. Step 3: Cross multiply
    8,833.60x = 13,175.98 × 8,221.24
  4. Step 4: Simplify right side
    8,833.60x = 108,322,893.82
  5. Step 5: Solve for x
    x = 108,322,893.82/8,833.60
  6. Step 6: Final answer
    x = 12,262.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.