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Finding the Fourth Proportional to 61,255.80, 84,527.82 and 34,396.20

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Solution

The fourth proportional to 61,255.80, 84,527.82 and 34,396.20 is: 47,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,255.80 : 84,527.82 = 34,396.20 : x
  2. Step 2: Convert to fraction form
    61,255.80/84,527.82 = 34,396.20/x
  3. Step 3: Cross multiply
    61,255.80x = 84,527.82 × 34,396.20
  4. Step 4: Simplify right side
    61,255.80x = 2,907,435,802.28
  5. Step 5: Solve for x
    x = 2,907,435,802.28/61,255.80
  6. Step 6: Final answer
    x = 47,463.85

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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.