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Finding the Fourth Proportional to 53,843.03, 80,772.74 and 18,774.48

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Solution

The fourth proportional to 53,843.03, 80,772.74 and 18,774.48 is: 28,164.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,843.03 : 80,772.74 = 18,774.48 : x
  2. Step 2: Convert to fraction form
    53,843.03/80,772.74 = 18,774.48/x
  3. Step 3: Cross multiply
    53,843.03x = 80,772.74 × 18,774.48
  4. Step 4: Simplify right side
    53,843.03x = 1,516,466,576.71
  5. Step 5: Solve for x
    x = 1,516,466,576.71/53,843.03
  6. Step 6: Final answer
    x = 28,164.59

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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.