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Finding the Fourth Proportional to 61,973.91, 85,524.66 and 33,679.60

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Solution

The fourth proportional to 61,973.91, 85,524.66 and 33,679.60 is: 46,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,973.91 : 85,524.66 = 33,679.60 : x
  2. Step 2: Convert to fraction form
    61,973.91/85,524.66 = 33,679.60/x
  3. Step 3: Cross multiply
    61,973.91x = 85,524.66 × 33,679.60
  4. Step 4: Simplify right side
    61,973.91x = 2,880,436,125.12
  5. Step 5: Solve for x
    x = 2,880,436,125.12/61,973.91
  6. Step 6: Final answer
    x = 46,478.21

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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.