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Finding the Fourth Proportional to 60,765.78, 83,856.62 and 33,908

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Solution

The fourth proportional to 60,765.78, 83,856.62 and 33,908 is: 46,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,765.78 : 83,856.62 = 33,908 : x
  2. Step 2: Convert to fraction form
    60,765.78/83,856.62 = 33,908/x
  3. Step 3: Cross multiply
    60,765.78x = 83,856.62 × 33,908
  4. Step 4: Simplify right side
    60,765.78x = 2,843,410,270.96
  5. Step 5: Solve for x
    x = 2,843,410,270.96/60,765.78
  6. Step 6: Final answer
    x = 46,792.95

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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.