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Finding the Fourth Proportional to 17,201.25, 25,801.90 and 4,721.45

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Solution

The fourth proportional to 17,201.25, 25,801.90 and 4,721.45 is: 7,082.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,201.25 : 25,801.90 = 4,721.45 : x
  2. Step 2: Convert to fraction form
    17,201.25/25,801.90 = 4,721.45/x
  3. Step 3: Cross multiply
    17,201.25x = 25,801.90 × 4,721.45
  4. Step 4: Simplify right side
    17,201.25x = 121,822,380.76
  5. Step 5: Solve for x
    x = 121,822,380.76/17,201.25
  6. Step 6: Final answer
    x = 7,082.18

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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.