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Finding the Fourth Proportional to 55,092.89, 82,590.88 and 21,836.30

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Solution

The fourth proportional to 55,092.89, 82,590.88 and 21,836.30 is: 32,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,092.89 : 82,590.88 = 21,836.30 : x
  2. Step 2: Convert to fraction form
    55,092.89/82,590.88 = 21,836.30/x
  3. Step 3: Cross multiply
    55,092.89x = 82,590.88 × 21,836.30
  4. Step 4: Simplify right side
    55,092.89x = 1,803,479,384.83
  5. Step 5: Solve for x
    x = 1,803,479,384.83/55,092.89
  6. Step 6: Final answer
    x = 32,735.25

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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.