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Finding the Fourth Proportional to 12,444.96, 17,169.12 and 8,667.12

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Solution

The fourth proportional to 12,444.96, 17,169.12 and 8,667.12 is: 11,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.96 : 17,169.12 = 8,667.12 : x
  2. Step 2: Convert to fraction form
    12,444.96/17,169.12 = 8,667.12/x
  3. Step 3: Cross multiply
    12,444.96x = 17,169.12 × 8,667.12
  4. Step 4: Simplify right side
    12,444.96x = 148,806,823.33
  5. Step 5: Solve for x
    x = 148,806,823.33/12,444.96
  6. Step 6: Final answer
    x = 11,957.20

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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.