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Finding the Fourth Proportional to 52,786.81, 79,180.28 and 15,850.81

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Solution

The fourth proportional to 52,786.81, 79,180.28 and 15,850.81 is: 23,776.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,786.81 : 79,180.28 = 15,850.81 : x
  2. Step 2: Convert to fraction form
    52,786.81/79,180.28 = 15,850.81/x
  3. Step 3: Cross multiply
    52,786.81x = 79,180.28 × 15,850.81
  4. Step 4: Simplify right side
    52,786.81x = 1,255,071,574.03
  5. Step 5: Solve for x
    x = 1,255,071,574.03/52,786.81
  6. Step 6: Final answer
    x = 23,776.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.