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Finding the Fourth Proportional to 62,760, 86,616.48 and 36,264

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Solution

The fourth proportional to 62,760, 86,616.48 and 36,264 is: 50,048.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,760 : 86,616.48 = 36,264 : x
  2. Step 2: Convert to fraction form
    62,760/86,616.48 = 36,264/x
  3. Step 3: Cross multiply
    62,760x = 86,616.48 × 36,264
  4. Step 4: Simplify right side
    62,760x = 3,141,060,030.72
  5. Step 5: Solve for x
    x = 3,141,060,030.72/62,760
  6. Step 6: Final answer
    x = 50,048.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.