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Finding the Fourth Proportional to 3,936.95, 5,905.46 and 1,015.03

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Solution

The fourth proportional to 3,936.95, 5,905.46 and 1,015.03 is: 1,522.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.95 : 5,905.46 = 1,015.03 : x
  2. Step 2: Convert to fraction form
    3,936.95/5,905.46 = 1,015.03/x
  3. Step 3: Cross multiply
    3,936.95x = 5,905.46 × 1,015.03
  4. Step 4: Simplify right side
    3,936.95x = 5,994,223.27
  5. Step 5: Solve for x
    x = 5,994,223.27/3,936.95
  6. Step 6: Final answer
    x = 1,522.55

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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.