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Finding the Fourth Proportional to 71,250.90, 106,805.85 and 33,745.05

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Solution

The fourth proportional to 71,250.90, 106,805.85 and 33,745.05 is: 50,584.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,250.90 : 106,805.85 = 33,745.05 : x
  2. Step 2: Convert to fraction form
    71,250.90/106,805.85 = 33,745.05/x
  3. Step 3: Cross multiply
    71,250.90x = 106,805.85 × 33,745.05
  4. Step 4: Simplify right side
    71,250.90x = 3,604,168,748.54
  5. Step 5: Solve for x
    x = 3,604,168,748.54/71,250.90
  6. Step 6: Final answer
    x = 50,584.19

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1.5x scale

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.