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Finding the Fourth Proportional to 61,418.54, 84,762.57 and 34,559.48

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Solution

The fourth proportional to 61,418.54, 84,762.57 and 34,559.48 is: 47,694.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,418.54 : 84,762.57 = 34,559.48 : x
  2. Step 2: Convert to fraction form
    61,418.54/84,762.57 = 34,559.48/x
  3. Step 3: Cross multiply
    61,418.54x = 84,762.57 × 34,559.48
  4. Step 4: Simplify right side
    61,418.54x = 2,929,349,918.85
  5. Step 5: Solve for x
    x = 2,929,349,918.85/61,418.54
  6. Step 6: Final answer
    x = 47,694.88

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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.