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Finding the Fourth Proportional to 17,312.22, 25,959.43 and 7,944.17

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Solution

The fourth proportional to 17,312.22, 25,959.43 and 7,944.17 is: 11,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,312.22 : 25,959.43 = 7,944.17 : x
  2. Step 2: Convert to fraction form
    17,312.22/25,959.43 = 7,944.17/x
  3. Step 3: Cross multiply
    17,312.22x = 25,959.43 × 7,944.17
  4. Step 4: Simplify right side
    17,312.22x = 206,226,151.18
  5. Step 5: Solve for x
    x = 206,226,151.18/17,312.22
  6. Step 6: Final answer
    x = 11,912.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.