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Finding the Fourth Proportional to 29,150.15, 40,129.92 and 27,811.13

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Solution

The fourth proportional to 29,150.15, 40,129.92 and 27,811.13 is: 38,286.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,150.15 : 40,129.92 = 27,811.13 : x
  2. Step 2: Convert to fraction form
    29,150.15/40,129.92 = 27,811.13/x
  3. Step 3: Cross multiply
    29,150.15x = 40,129.92 × 27,811.13
  4. Step 4: Simplify right side
    29,150.15x = 1,116,058,221.36
  5. Step 5: Solve for x
    x = 1,116,058,221.36/29,150.15
  6. Step 6: Final answer
    x = 38,286.54

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1.5x scale

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.