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Finding the Fourth Proportional to 45,093.90, 67,583.34 and 21,401.40

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Solution

The fourth proportional to 45,093.90, 67,583.34 and 21,401.40 is: 32,074.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,093.90 : 67,583.34 = 21,401.40 : x
  2. Step 2: Convert to fraction form
    45,093.90/67,583.34 = 21,401.40/x
  3. Step 3: Cross multiply
    45,093.90x = 67,583.34 × 21,401.40
  4. Step 4: Simplify right side
    45,093.90x = 1,446,378,092.68
  5. Step 5: Solve for x
    x = 1,446,378,092.68/45,093.90
  6. Step 6: Final answer
    x = 32,074.81

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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.