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Finding the Fourth Proportional to 39,763.80, 59,645.70 and 33,251.40

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Solution

The fourth proportional to 39,763.80, 59,645.70 and 33,251.40 is: 49,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.80 : 59,645.70 = 33,251.40 : x
  2. Step 2: Convert to fraction form
    39,763.80/59,645.70 = 33,251.40/x
  3. Step 3: Cross multiply
    39,763.80x = 59,645.70 × 33,251.40
  4. Step 4: Simplify right side
    39,763.80x = 1,983,303,028.98
  5. Step 5: Solve for x
    x = 1,983,303,028.98/39,763.80
  6. Step 6: Final answer
    x = 49,877.10

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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.