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Finding the Fourth Proportional to 12,361.38, 17,058.60 and 6,772.38

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Solution

The fourth proportional to 12,361.38, 17,058.60 and 6,772.38 is: 9,345.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361.38 : 17,058.60 = 6,772.38 : x
  2. Step 2: Convert to fraction form
    12,361.38/17,058.60 = 6,772.38/x
  3. Step 3: Cross multiply
    12,361.38x = 17,058.60 × 6,772.38
  4. Step 4: Simplify right side
    12,361.38x = 115,527,321.47
  5. Step 5: Solve for x
    x = 115,527,321.47/12,361.38
  6. Step 6: Final answer
    x = 9,345.83

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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.