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Finding the Fourth Proportional to 62,718.80, 86,558.09 and 35,865.27

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Solution

The fourth proportional to 62,718.80, 86,558.09 and 35,865.27 is: 49,497.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,718.80 : 86,558.09 = 35,865.27 : x
  2. Step 2: Convert to fraction form
    62,718.80/86,558.09 = 35,865.27/x
  3. Step 3: Cross multiply
    62,718.80x = 86,558.09 × 35,865.27
  4. Step 4: Simplify right side
    62,718.80x = 3,104,429,089.21
  5. Step 5: Solve for x
    x = 3,104,429,089.21/62,718.80
  6. Step 6: Final answer
    x = 49,497.59

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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.