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Finding the Fourth Proportional to 29,651.16, 40,917.40 and 17,721.08

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Solution

The fourth proportional to 29,651.16, 40,917.40 and 17,721.08 is: 24,454.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,651.16 : 40,917.40 = 17,721.08 : x
  2. Step 2: Convert to fraction form
    29,651.16/40,917.40 = 17,721.08/x
  3. Step 3: Cross multiply
    29,651.16x = 40,917.40 × 17,721.08
  4. Step 4: Simplify right side
    29,651.16x = 725,100,523.02
  5. Step 5: Solve for x
    x = 725,100,523.02/29,651.16
  6. Step 6: Final answer
    x = 24,454.37

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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.