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Finding the Fourth Proportional to 81,346.92, 122,007.78 and 22,187.32

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Solution

The fourth proportional to 81,346.92, 122,007.78 and 22,187.32 is: 33,277.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,346.92 : 122,007.78 = 22,187.32 : x
  2. Step 2: Convert to fraction form
    81,346.92/122,007.78 = 22,187.32/x
  3. Step 3: Cross multiply
    81,346.92x = 122,007.78 × 22,187.32
  4. Step 4: Simplify right side
    81,346.92x = 2,707,025,657.35
  5. Step 5: Solve for x
    x = 2,707,025,657.35/81,346.92
  6. Step 6: Final answer
    x = 33,277.54

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1.5x scale

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.