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Finding the Fourth Proportional to 5,793.21, 8,721.47 and 3,955.95

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Solution

The fourth proportional to 5,793.21, 8,721.47 and 3,955.95 is: 5,955.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,793.21 : 8,721.47 = 3,955.95 : x
  2. Step 2: Convert to fraction form
    5,793.21/8,721.47 = 3,955.95/x
  3. Step 3: Cross multiply
    5,793.21x = 8,721.47 × 3,955.95
  4. Step 4: Simplify right side
    5,793.21x = 34,501,679.47
  5. Step 5: Solve for x
    x = 34,501,679.47/5,793.21
  6. Step 6: Final answer
    x = 5,955.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.