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Finding the Fourth Proportional to 62,743.84, 86,561.81 and 35,871.91

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Solution

The fourth proportional to 62,743.84, 86,561.81 and 35,871.91 is: 49,489.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,743.84 : 86,561.81 = 35,871.91 : x
  2. Step 2: Convert to fraction form
    62,743.84/86,561.81 = 35,871.91/x
  3. Step 3: Cross multiply
    62,743.84x = 86,561.81 × 35,871.91
  4. Step 4: Simplify right side
    62,743.84x = 3,105,137,278.40
  5. Step 5: Solve for x
    x = 3,105,137,278.40/62,743.84
  6. Step 6: Final answer
    x = 49,489.12

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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.