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Finding the Fourth Proportional to 45,925.98, 68,833.62 and 39,891.48

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Solution

The fourth proportional to 45,925.98, 68,833.62 and 39,891.48 is: 59,789.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,925.98 : 68,833.62 = 39,891.48 : x
  2. Step 2: Convert to fraction form
    45,925.98/68,833.62 = 39,891.48/x
  3. Step 3: Cross multiply
    45,925.98x = 68,833.62 × 39,891.48
  4. Step 4: Simplify right side
    45,925.98x = 2,745,874,975.56
  5. Step 5: Solve for x
    x = 2,745,874,975.56/45,925.98
  6. Step 6: Final answer
    x = 59,789.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.