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Finding the Fourth Proportional to 12,262.60, 16,922.58 and 8,016.40

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Solution

The fourth proportional to 12,262.60, 16,922.58 and 8,016.40 is: 11,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.60 : 16,922.58 = 8,016.40 : x
  2. Step 2: Convert to fraction form
    12,262.60/16,922.58 = 8,016.40/x
  3. Step 3: Cross multiply
    12,262.60x = 16,922.58 × 8,016.40
  4. Step 4: Simplify right side
    12,262.60x = 135,658,170.31
  5. Step 5: Solve for x
    x = 135,658,170.31/12,262.60
  6. Step 6: Final answer
    x = 11,062.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.