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Finding the Fourth Proportional to 62,850.13, 86,724.15 and 36,993.31

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Solution

The fourth proportional to 62,850.13, 86,724.15 and 36,993.31 is: 51,045.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,850.13 : 86,724.15 = 36,993.31 : x
  2. Step 2: Convert to fraction form
    62,850.13/86,724.15 = 36,993.31/x
  3. Step 3: Cross multiply
    62,850.13x = 86,724.15 × 36,993.31
  4. Step 4: Simplify right side
    62,850.13x = 3,208,212,931.82
  5. Step 5: Solve for x
    x = 3,208,212,931.82/62,850.13
  6. Step 6: Final answer
    x = 51,045.45

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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.