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Finding the Fourth Proportional to 62,615.57, 86,409.99 and 34,321.46

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Solution

The fourth proportional to 62,615.57, 86,409.99 and 34,321.46 is: 47,363.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,615.57 : 86,409.99 = 34,321.46 : x
  2. Step 2: Convert to fraction form
    62,615.57/86,409.99 = 34,321.46/x
  3. Step 3: Cross multiply
    62,615.57x = 86,409.99 × 34,321.46
  4. Step 4: Simplify right side
    62,615.57x = 2,965,716,583.34
  5. Step 5: Solve for x
    x = 2,965,716,583.34/62,615.57
  6. Step 6: Final answer
    x = 47,363.89

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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.