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Finding the Fourth Proportional to 61,645.70, 85,071.30 and 33,351.41

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Solution

The fourth proportional to 61,645.70, 85,071.30 and 33,351.41 is: 46,025.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,645.70 : 85,071.30 = 33,351.41 : x
  2. Step 2: Convert to fraction form
    61,645.70/85,071.30 = 33,351.41/x
  3. Step 3: Cross multiply
    61,645.70x = 85,071.30 × 33,351.41
  4. Step 4: Simplify right side
    61,645.70x = 2,837,247,805.53
  5. Step 5: Solve for x
    x = 2,837,247,805.53/61,645.70
  6. Step 6: Final answer
    x = 46,025.07

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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.