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Finding the Fourth Proportional to 3,937.88, 5,906.84 and 1,015.98

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Solution

The fourth proportional to 3,937.88, 5,906.84 and 1,015.98 is: 1,523.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.88 : 5,906.84 = 1,015.98 : x
  2. Step 2: Convert to fraction form
    3,937.88/5,906.84 = 1,015.98/x
  3. Step 3: Cross multiply
    3,937.88x = 5,906.84 × 1,015.98
  4. Step 4: Simplify right side
    3,937.88x = 6,001,226.22
  5. Step 5: Solve for x
    x = 6,001,226.22/3,937.88
  6. Step 6: Final answer
    x = 1,523.98

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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.