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Finding the Fourth Proportional to 45,375.90, 68,063.85 and 25,692.90

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Solution

The fourth proportional to 45,375.90, 68,063.85 and 25,692.90 is: 38,539.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,375.90 : 68,063.85 = 25,692.90 : x
  2. Step 2: Convert to fraction form
    45,375.90/68,063.85 = 25,692.90/x
  3. Step 3: Cross multiply
    45,375.90x = 68,063.85 × 25,692.90
  4. Step 4: Simplify right side
    45,375.90x = 1,748,757,691.67
  5. Step 5: Solve for x
    x = 1,748,757,691.67/45,375.90
  6. Step 6: Final answer
    x = 38,539.35

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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.