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Finding the Fourth Proportional to 31,396, 43,324.42 and 17,247.92

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Solution

The fourth proportional to 31,396, 43,324.42 and 17,247.92 is: 23,801.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,396 : 43,324.42 = 17,247.92 : x
  2. Step 2: Convert to fraction form
    31,396/43,324.42 = 17,247.92/x
  3. Step 3: Cross multiply
    31,396x = 43,324.42 × 17,247.92
  4. Step 4: Simplify right side
    31,396x = 747,256,130.21
  5. Step 5: Solve for x
    x = 747,256,130.21/31,396
  6. Step 6: Final answer
    x = 23,801.00

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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.