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Finding the Fourth Proportional to 31,640.48, 43,662.48 and 17,300.04

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Solution

The fourth proportional to 31,640.48, 43,662.48 and 17,300.04 is: 23,873.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,640.48 : 43,662.48 = 17,300.04 : x
  2. Step 2: Convert to fraction form
    31,640.48/43,662.48 = 17,300.04/x
  3. Step 3: Cross multiply
    31,640.48x = 43,662.48 × 17,300.04
  4. Step 4: Simplify right side
    31,640.48x = 755,362,650.50
  5. Step 5: Solve for x
    x = 755,362,650.50/31,640.48
  6. Step 6: Final answer
    x = 23,873.30

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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.