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Finding the Fourth Proportional to 26,693.40, 40,040.10 and 16,851.90

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Solution

The fourth proportional to 26,693.40, 40,040.10 and 16,851.90 is: 25,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,693.40 : 40,040.10 = 16,851.90 : x
  2. Step 2: Convert to fraction form
    26,693.40/40,040.10 = 16,851.90/x
  3. Step 3: Cross multiply
    26,693.40x = 40,040.10 × 16,851.90
  4. Step 4: Simplify right side
    26,693.40x = 674,751,761.19
  5. Step 5: Solve for x
    x = 674,751,761.19/26,693.40
  6. Step 6: Final answer
    x = 25,277.85

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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.