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Finding the Fourth Proportional to 55,296.72, 82,911.72 and 22,021.92

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Solution

The fourth proportional to 55,296.72, 82,911.72 and 22,021.92 is: 33,019.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,296.72 : 82,911.72 = 22,021.92 : x
  2. Step 2: Convert to fraction form
    55,296.72/82,911.72 = 22,021.92/x
  3. Step 3: Cross multiply
    55,296.72x = 82,911.72 × 22,021.92
  4. Step 4: Simplify right side
    55,296.72x = 1,825,875,264.90
  5. Step 5: Solve for x
    x = 1,825,875,264.90/55,296.72
  6. Step 6: Final answer
    x = 33,019.59

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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.