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Finding the Fourth Proportional to 12,610.65, 17,402.48 and 6,945.92

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Solution

The fourth proportional to 12,610.65, 17,402.48 and 6,945.92 is: 9,585.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.65 : 17,402.48 = 6,945.92 : x
  2. Step 2: Convert to fraction form
    12,610.65/17,402.48 = 6,945.92/x
  3. Step 3: Cross multiply
    12,610.65x = 17,402.48 × 6,945.92
  4. Step 4: Simplify right side
    12,610.65x = 120,876,233.88
  5. Step 5: Solve for x
    x = 120,876,233.88/12,610.65
  6. Step 6: Final answer
    x = 9,585.25

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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.