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Finding the Fourth Proportional to 51,081.01, 76,620.74 and 22,981.22

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Solution

The fourth proportional to 51,081.01, 76,620.74 and 22,981.22 is: 34,471.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,081.01 : 76,620.74 = 22,981.22 : x
  2. Step 2: Convert to fraction form
    51,081.01/76,620.74 = 22,981.22/x
  3. Step 3: Cross multiply
    51,081.01x = 76,620.74 × 22,981.22
  4. Step 4: Simplify right side
    51,081.01x = 1,760,838,001.09
  5. Step 5: Solve for x
    x = 1,760,838,001.09/51,081.01
  6. Step 6: Final answer
    x = 34,471.48

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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.