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Finding the Fourth Proportional to 62,988.31, 86,923.86 and 34,694.00

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Solution

The fourth proportional to 62,988.31, 86,923.86 and 34,694.00 is: 47,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,988.31 : 86,923.86 = 34,694.00 : x
  2. Step 2: Convert to fraction form
    62,988.31/86,923.86 = 34,694.00/x
  3. Step 3: Cross multiply
    62,988.31x = 86,923.86 × 34,694.00
  4. Step 4: Simplify right side
    62,988.31x = 3,015,736,181.53
  5. Step 5: Solve for x
    x = 3,015,736,181.53/62,988.31
  6. Step 6: Final answer
    x = 47,877.71

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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.