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Finding the Fourth Proportional to 6,554.21, 9,042.62 and 3,721.29

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Solution

The fourth proportional to 6,554.21, 9,042.62 and 3,721.29 is: 5,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,554.21 : 9,042.62 = 3,721.29 : x
  2. Step 2: Convert to fraction form
    6,554.21/9,042.62 = 3,721.29/x
  3. Step 3: Cross multiply
    6,554.21x = 9,042.62 × 3,721.29
  4. Step 4: Simplify right side
    6,554.21x = 33,650,192.77
  5. Step 5: Solve for x
    x = 33,650,192.77/6,554.21
  6. Step 6: Final answer
    x = 5,134.14

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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.