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Finding the Fourth Proportional to 45,817.54, 68,721.98 and 14,644.42

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Solution

The fourth proportional to 45,817.54, 68,721.98 and 14,644.42 is: 21,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,817.54 : 68,721.98 = 14,644.42 : x
  2. Step 2: Convert to fraction form
    45,817.54/68,721.98 = 14,644.42/x
  3. Step 3: Cross multiply
    45,817.54x = 68,721.98 × 14,644.42
  4. Step 4: Simplify right side
    45,817.54x = 1,006,393,538.35
  5. Step 5: Solve for x
    x = 1,006,393,538.35/45,817.54
  6. Step 6: Final answer
    x = 21,965.25

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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.