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Finding the Fourth Proportional to 3,015.93, 4,523.28 and 824.49

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Solution

The fourth proportional to 3,015.93, 4,523.28 and 824.49 is: 1,236.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.93 : 4,523.28 = 824.49 : x
  2. Step 2: Convert to fraction form
    3,015.93/4,523.28 = 824.49/x
  3. Step 3: Cross multiply
    3,015.93x = 4,523.28 × 824.49
  4. Step 4: Simplify right side
    3,015.93x = 3,729,399.13
  5. Step 5: Solve for x
    x = 3,729,399.13/3,015.93
  6. Step 6: Final answer
    x = 1,236.57

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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.