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Finding the Fourth Proportional to 61,864.97, 85,375.20 and 33,570.59

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Solution

The fourth proportional to 61,864.97, 85,375.20 and 33,570.59 is: 46,328.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,864.97 : 85,375.20 = 33,570.59 : x
  2. Step 2: Convert to fraction form
    61,864.97/85,375.20 = 33,570.59/x
  3. Step 3: Cross multiply
    61,864.97x = 85,375.20 × 33,570.59
  4. Step 4: Simplify right side
    61,864.97x = 2,866,095,835.37
  5. Step 5: Solve for x
    x = 2,866,095,835.37/61,864.97
  6. Step 6: Final answer
    x = 46,328.25

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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.