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Finding the Fourth Proportional to 62,911.74, 86,817.78 and 34,617.36

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Solution

The fourth proportional to 62,911.74, 86,817.78 and 34,617.36 is: 47,771.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,911.74 : 86,817.78 = 34,617.36 : x
  2. Step 2: Convert to fraction form
    62,911.74/86,817.78 = 34,617.36/x
  3. Step 3: Cross multiply
    62,911.74x = 86,817.78 × 34,617.36
  4. Step 4: Simplify right side
    62,911.74x = 3,005,402,344.66
  5. Step 5: Solve for x
    x = 3,005,402,344.66/62,911.74
  6. Step 6: Final answer
    x = 47,771.73

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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.