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Finding the Fourth Proportional to 61,474.67, 84,841.40 and 37,617.20

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Solution

The fourth proportional to 61,474.67, 84,841.40 and 37,617.20 is: 51,915.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,474.67 : 84,841.40 = 37,617.20 : x
  2. Step 2: Convert to fraction form
    61,474.67/84,841.40 = 37,617.20/x
  3. Step 3: Cross multiply
    61,474.67x = 84,841.40 × 37,617.20
  4. Step 4: Simplify right side
    61,474.67x = 3,191,495,912.08
  5. Step 5: Solve for x
    x = 3,191,495,912.08/61,474.67
  6. Step 6: Final answer
    x = 51,915.62

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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.