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Finding the Fourth Proportional to 62,977, 86,908.38 and 34,685.32

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Solution

The fourth proportional to 62,977, 86,908.38 and 34,685.32 is: 47,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,977 : 86,908.38 = 34,685.32 : x
  2. Step 2: Convert to fraction form
    62,977/86,908.38 = 34,685.32/x
  3. Step 3: Cross multiply
    62,977x = 86,908.38 × 34,685.32
  4. Step 4: Simplify right side
    62,977x = 3,014,444,970.98
  5. Step 5: Solve for x
    x = 3,014,444,970.98/62,977
  6. Step 6: Final answer
    x = 47,865.81

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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.