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Finding the Fourth Proportional to 26,250.60, 39,361.44 and 17,940

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Solution

The fourth proportional to 26,250.60, 39,361.44 and 17,940 is: 26,900.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,250.60 : 39,361.44 = 17,940 : x
  2. Step 2: Convert to fraction form
    26,250.60/39,361.44 = 17,940/x
  3. Step 3: Cross multiply
    26,250.60x = 39,361.44 × 17,940
  4. Step 4: Simplify right side
    26,250.60x = 706,144,233.60
  5. Step 5: Solve for x
    x = 706,144,233.60/26,250.60
  6. Step 6: Final answer
    x = 26,900.12

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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.