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Finding the Fourth Proportional to 26,716.40, 40,132.20 and 25,737.20

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Solution

The fourth proportional to 26,716.40, 40,132.20 and 25,737.20 is: 38,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,716.40 : 40,132.20 = 25,737.20 : x
  2. Step 2: Convert to fraction form
    26,716.40/40,132.20 = 25,737.20/x
  3. Step 3: Cross multiply
    26,716.40x = 40,132.20 × 25,737.20
  4. Step 4: Simplify right side
    26,716.40x = 1,032,890,457.84
  5. Step 5: Solve for x
    x = 1,032,890,457.84/26,716.40
  6. Step 6: Final answer
    x = 38,661.29

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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.