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Finding the Fourth Proportional to 62,696.70, 86,521.46 and 35,839.80

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Solution

The fourth proportional to 62,696.70, 86,521.46 and 35,839.80 is: 49,458.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,696.70 : 86,521.46 = 35,839.80 : x
  2. Step 2: Convert to fraction form
    62,696.70/86,521.46 = 35,839.80/x
  3. Step 3: Cross multiply
    62,696.70x = 86,521.46 × 35,839.80
  4. Step 4: Simplify right side
    62,696.70x = 3,100,911,642.91
  5. Step 5: Solve for x
    x = 3,100,911,642.91/62,696.70
  6. Step 6: Final answer
    x = 49,458.93

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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.