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Finding the Fourth Proportional to 60,616.82, 90,939.54 and 19,063.82

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Solution

The fourth proportional to 60,616.82, 90,939.54 and 19,063.82 is: 28,600.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,616.82 : 90,939.54 = 19,063.82 : x
  2. Step 2: Convert to fraction form
    60,616.82/90,939.54 = 19,063.82/x
  3. Step 3: Cross multiply
    60,616.82x = 90,939.54 × 19,063.82
  4. Step 4: Simplify right side
    60,616.82x = 1,733,655,021.44
  5. Step 5: Solve for x
    x = 1,733,655,021.44/60,616.82
  6. Step 6: Final answer
    x = 28,600.23

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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.