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Finding the Fourth Proportional to 61,233.80, 91,845.30 and 16,856.60

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Solution

The fourth proportional to 61,233.80, 91,845.30 and 16,856.60 is: 25,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,233.80 : 91,845.30 = 16,856.60 : x
  2. Step 2: Convert to fraction form
    61,233.80/91,845.30 = 16,856.60/x
  3. Step 3: Cross multiply
    61,233.80x = 91,845.30 × 16,856.60
  4. Step 4: Simplify right side
    61,233.80x = 1,548,199,483.98
  5. Step 5: Solve for x
    x = 1,548,199,483.98/61,233.80
  6. Step 6: Final answer
    x = 25,283.41

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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.