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Finding the Fourth Proportional to 5,717.82, 7,890.03 and 3,360.54

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Solution

The fourth proportional to 5,717.82, 7,890.03 and 3,360.54 is: 4,637.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,717.82 : 7,890.03 = 3,360.54 : x
  2. Step 2: Convert to fraction form
    5,717.82/7,890.03 = 3,360.54/x
  3. Step 3: Cross multiply
    5,717.82x = 7,890.03 × 3,360.54
  4. Step 4: Simplify right side
    5,717.82x = 26,514,761.42
  5. Step 5: Solve for x
    x = 26,514,761.42/5,717.82
  6. Step 6: Final answer
    x = 4,637.22

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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.