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Finding the Fourth Proportional to 55,370.52, 83,061.99 and 20,310.08

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Solution

The fourth proportional to 55,370.52, 83,061.99 and 20,310.08 is: 30,467.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,370.52 : 83,061.99 = 20,310.08 : x
  2. Step 2: Convert to fraction form
    55,370.52/83,061.99 = 20,310.08/x
  3. Step 3: Cross multiply
    55,370.52x = 83,061.99 × 20,310.08
  4. Step 4: Simplify right side
    55,370.52x = 1,686,995,246.55
  5. Step 5: Solve for x
    x = 1,686,995,246.55/55,370.52
  6. Step 6: Final answer
    x = 30,467.39

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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.