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Finding the Fourth Proportional to 72,039.92, 108,073.89 and 27,663.41

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Solution

The fourth proportional to 72,039.92, 108,073.89 and 27,663.41 is: 41,500.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,039.92 : 108,073.89 = 27,663.41 : x
  2. Step 2: Convert to fraction form
    72,039.92/108,073.89 = 27,663.41/x
  3. Step 3: Cross multiply
    72,039.92x = 108,073.89 × 27,663.41
  4. Step 4: Simplify right side
    72,039.92x = 2,989,692,191.05
  5. Step 5: Solve for x
    x = 2,989,692,191.05/72,039.92
  6. Step 6: Final answer
    x = 41,500.49

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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.