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Finding the Fourth Proportional to 40,058.62, 60,082.70 and 10,478.72

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Solution

The fourth proportional to 40,058.62, 60,082.70 and 10,478.72 is: 15,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,058.62 : 60,082.70 = 10,478.72 : x
  2. Step 2: Convert to fraction form
    40,058.62/60,082.70 = 10,478.72/x
  3. Step 3: Cross multiply
    40,058.62x = 60,082.70 × 10,478.72
  4. Step 4: Simplify right side
    40,058.62x = 629,589,887.96
  5. Step 5: Solve for x
    x = 629,589,887.96/40,058.62
  6. Step 6: Final answer
    x = 15,716.72

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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.