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Finding the Fourth Proportional to 55,764.78, 83,472.21 and 29,389.56

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Solution

The fourth proportional to 55,764.78, 83,472.21 and 29,389.56 is: 43,992.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,764.78 : 83,472.21 = 29,389.56 : x
  2. Step 2: Convert to fraction form
    55,764.78/83,472.21 = 29,389.56/x
  3. Step 3: Cross multiply
    55,764.78x = 83,472.21 × 29,389.56
  4. Step 4: Simplify right side
    55,764.78x = 2,453,211,524.13
  5. Step 5: Solve for x
    x = 2,453,211,524.13/55,764.78
  6. Step 6: Final answer
    x = 43,992.13

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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.