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Finding the Fourth Proportional to 12,959.22, 17,883.75 and 7,370.22

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Solution

The fourth proportional to 12,959.22, 17,883.75 and 7,370.22 is: 10,170.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.22 : 17,883.75 = 7,370.22 : x
  2. Step 2: Convert to fraction form
    12,959.22/17,883.75 = 7,370.22/x
  3. Step 3: Cross multiply
    12,959.22x = 17,883.75 × 7,370.22
  4. Step 4: Simplify right side
    12,959.22x = 131,807,171.93
  5. Step 5: Solve for x
    x = 131,807,171.93/12,959.22
  6. Step 6: Final answer
    x = 10,170.92

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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.