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Finding the Fourth Proportional to 3,152.72, 4,729.08 and 844.28

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Solution

The fourth proportional to 3,152.72, 4,729.08 and 844.28 is: 1,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.72 : 4,729.08 = 844.28 : x
  2. Step 2: Convert to fraction form
    3,152.72/4,729.08 = 844.28/x
  3. Step 3: Cross multiply
    3,152.72x = 4,729.08 × 844.28
  4. Step 4: Simplify right side
    3,152.72x = 3,992,667.66
  5. Step 5: Solve for x
    x = 3,992,667.66/3,152.72
  6. Step 6: Final answer
    x = 1,266.42

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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.