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Finding the Fourth Proportional to 12,761.39, 17,610.39 and 7,095.85

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Solution

The fourth proportional to 12,761.39, 17,610.39 and 7,095.85 is: 9,792.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761.39 : 17,610.39 = 7,095.85 : x
  2. Step 2: Convert to fraction form
    12,761.39/17,610.39 = 7,095.85/x
  3. Step 3: Cross multiply
    12,761.39x = 17,610.39 × 7,095.85
  4. Step 4: Simplify right side
    12,761.39x = 124,960,685.88
  5. Step 5: Solve for x
    x = 124,960,685.88/12,761.39
  6. Step 6: Final answer
    x = 9,792.09

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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.