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Finding the Fourth Proportional to 61,811.52, 85,300.38 and 33,517.20

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Solution

The fourth proportional to 61,811.52, 85,300.38 and 33,517.20 is: 46,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,811.52 : 85,300.38 = 33,517.20 : x
  2. Step 2: Convert to fraction form
    61,811.52/85,300.38 = 33,517.20/x
  3. Step 3: Cross multiply
    61,811.52x = 85,300.38 × 33,517.20
  4. Step 4: Simplify right side
    61,811.52x = 2,859,029,896.54
  5. Step 5: Solve for x
    x = 2,859,029,896.54/61,811.52
  6. Step 6: Final answer
    x = 46,254.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.