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Finding the Fourth Proportional to 61,900.53, 85,424.77 and 35,042.48

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Solution

The fourth proportional to 61,900.53, 85,424.77 and 35,042.48 is: 48,359.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,900.53 : 85,424.77 = 35,042.48 : x
  2. Step 2: Convert to fraction form
    61,900.53/85,424.77 = 35,042.48/x
  3. Step 3: Cross multiply
    61,900.53x = 85,424.77 × 35,042.48
  4. Step 4: Simplify right side
    61,900.53x = 2,993,495,794.23
  5. Step 5: Solve for x
    x = 2,993,495,794.23/61,900.53
  6. Step 6: Final answer
    x = 48,359.78

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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.