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Finding the Fourth Proportional to 60,773.72, 91,201.34 and 21,330.95

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Solution

The fourth proportional to 60,773.72, 91,201.34 and 21,330.95 is: 32,010.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,773.72 : 91,201.34 = 21,330.95 : x
  2. Step 2: Convert to fraction form
    60,773.72/91,201.34 = 21,330.95/x
  3. Step 3: Cross multiply
    60,773.72x = 91,201.34 × 21,330.95
  4. Step 4: Simplify right side
    60,773.72x = 1,945,410,820.79
  5. Step 5: Solve for x
    x = 1,945,410,820.79/60,773.72
  6. Step 6: Final answer
    x = 32,010.73

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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.