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Finding the Fourth Proportional to 3,906.89, 5,860.26 and 1,133.45

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Solution

The fourth proportional to 3,906.89, 5,860.26 and 1,133.45 is: 1,700.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.89 : 5,860.26 = 1,133.45 : x
  2. Step 2: Convert to fraction form
    3,906.89/5,860.26 = 1,133.45/x
  3. Step 3: Cross multiply
    3,906.89x = 5,860.26 × 1,133.45
  4. Step 4: Simplify right side
    3,906.89x = 6,642,311.70
  5. Step 5: Solve for x
    x = 6,642,311.70/3,906.89
  6. Step 6: Final answer
    x = 1,700.15

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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.