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Finding the Fourth Proportional to 39,268.80, 58,816.80 and 34,084.80

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Solution

The fourth proportional to 39,268.80, 58,816.80 and 34,084.80 is: 51,052.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,268.80 : 58,816.80 = 34,084.80 : x
  2. Step 2: Convert to fraction form
    39,268.80/58,816.80 = 34,084.80/x
  3. Step 3: Cross multiply
    39,268.80x = 58,816.80 × 34,084.80
  4. Step 4: Simplify right side
    39,268.80x = 2,004,758,864.64
  5. Step 5: Solve for x
    x = 2,004,758,864.64/39,268.80
  6. Step 6: Final answer
    x = 51,052.21

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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.