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Finding the Fourth Proportional to 39,833.87, 59,787.69 and 20,126.25

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Solution

The fourth proportional to 39,833.87, 59,787.69 and 20,126.25 is: 30,208.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,833.87 : 59,787.69 = 20,126.25 : x
  2. Step 2: Convert to fraction form
    39,833.87/59,787.69 = 20,126.25/x
  3. Step 3: Cross multiply
    39,833.87x = 59,787.69 × 20,126.25
  4. Step 4: Simplify right side
    39,833.87x = 1,203,301,995.86
  5. Step 5: Solve for x
    x = 1,203,301,995.86/39,833.87
  6. Step 6: Final answer
    x = 30,208.02

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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.