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Finding the Fourth Proportional to 60,775.92, 91,180.62 and 21,327.84

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Solution

The fourth proportional to 60,775.92, 91,180.62 and 21,327.84 is: 31,997.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,775.92 : 91,180.62 = 21,327.84 : x
  2. Step 2: Convert to fraction form
    60,775.92/91,180.62 = 21,327.84/x
  3. Step 3: Cross multiply
    60,775.92x = 91,180.62 × 21,327.84
  4. Step 4: Simplify right side
    60,775.92x = 1,944,685,674.46
  5. Step 5: Solve for x
    x = 1,944,685,674.46/60,775.92
  6. Step 6: Final answer
    x = 31,997.63

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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.