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Finding the Fourth Proportional to 12,667.70, 17,481.08 and 6,924.92

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Solution

The fourth proportional to 12,667.70, 17,481.08 and 6,924.92 is: 9,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,667.70 : 17,481.08 = 6,924.92 : x
  2. Step 2: Convert to fraction form
    12,667.70/17,481.08 = 6,924.92/x
  3. Step 3: Cross multiply
    12,667.70x = 17,481.08 × 6,924.92
  4. Step 4: Simplify right side
    12,667.70x = 121,055,045.89
  5. Step 5: Solve for x
    x = 121,055,045.89/12,667.70
  6. Step 6: Final answer
    x = 9,556.20

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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.