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Finding the Fourth Proportional to 84,580.92, 126,861.24 and 22,256.28

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Solution

The fourth proportional to 84,580.92, 126,861.24 and 22,256.28 is: 33,381.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,580.92 : 126,861.24 = 22,256.28 : x
  2. Step 2: Convert to fraction form
    84,580.92/126,861.24 = 22,256.28/x
  3. Step 3: Cross multiply
    84,580.92x = 126,861.24 × 22,256.28
  4. Step 4: Simplify right side
    84,580.92x = 2,823,459,278.59
  5. Step 5: Solve for x
    x = 2,823,459,278.59/84,580.92
  6. Step 6: Final answer
    x = 33,381.75

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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.