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Finding the Fourth Proportional to 62,997.76, 86,935.80 and 34,703.20

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Solution

The fourth proportional to 62,997.76, 86,935.80 and 34,703.20 is: 47,889.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,997.76 : 86,935.80 = 34,703.20 : x
  2. Step 2: Convert to fraction form
    62,997.76/86,935.80 = 34,703.20/x
  3. Step 3: Cross multiply
    62,997.76x = 86,935.80 × 34,703.20
  4. Step 4: Simplify right side
    62,997.76x = 3,016,950,454.56
  5. Step 5: Solve for x
    x = 3,016,950,454.56/62,997.76
  6. Step 6: Final answer
    x = 47,889.81

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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.