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Finding the Fourth Proportional to 26,741.92, 40,113.40 and 10,109.78

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Solution

The fourth proportional to 26,741.92, 40,113.40 and 10,109.78 is: 15,164.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,741.92 : 40,113.40 = 10,109.78 : x
  2. Step 2: Convert to fraction form
    26,741.92/40,113.40 = 10,109.78/x
  3. Step 3: Cross multiply
    26,741.92x = 40,113.40 × 10,109.78
  4. Step 4: Simplify right side
    26,741.92x = 405,537,649.05
  5. Step 5: Solve for x
    x = 405,537,649.05/26,741.92
  6. Step 6: Final answer
    x = 15,164.87

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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.