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Finding the Fourth Proportional to 55,889.82, 83,843.06 and 18,453.85

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Solution

The fourth proportional to 55,889.82, 83,843.06 and 18,453.85 is: 27,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,889.82 : 83,843.06 = 18,453.85 : x
  2. Step 2: Convert to fraction form
    55,889.82/83,843.06 = 18,453.85/x
  3. Step 3: Cross multiply
    55,889.82x = 83,843.06 × 18,453.85
  4. Step 4: Simplify right side
    55,889.82x = 1,547,227,089.31
  5. Step 5: Solve for x
    x = 1,547,227,089.31/55,889.82
  6. Step 6: Final answer
    x = 27,683.52

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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.