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Finding the Fourth Proportional to 61,408.80, 92,161.80 and 23,986.80

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Solution

The fourth proportional to 61,408.80, 92,161.80 and 23,986.80 is: 35,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,408.80 : 92,161.80 = 23,986.80 : x
  2. Step 2: Convert to fraction form
    61,408.80/92,161.80 = 23,986.80/x
  3. Step 3: Cross multiply
    61,408.80x = 92,161.80 × 23,986.80
  4. Step 4: Simplify right side
    61,408.80x = 2,210,666,664.24
  5. Step 5: Solve for x
    x = 2,210,666,664.24/61,408.80
  6. Step 6: Final answer
    x = 35,999.18

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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.