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Finding the Fourth Proportional to 3,844.76, 5,306.46 and 3,015.32

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Solution

The fourth proportional to 3,844.76, 5,306.46 and 3,015.32 is: 4,161.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,844.76 : 5,306.46 = 3,015.32 : x
  2. Step 2: Convert to fraction form
    3,844.76/5,306.46 = 3,015.32/x
  3. Step 3: Cross multiply
    3,844.76x = 5,306.46 × 3,015.32
  4. Step 4: Simplify right side
    3,844.76x = 16,000,674.97
  5. Step 5: Solve for x
    x = 16,000,674.97/3,844.76
  6. Step 6: Final answer
    x = 4,161.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.