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Finding the Fourth Proportional to 3,276.11, 4,914.59 and 936.20

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Solution

The fourth proportional to 3,276.11, 4,914.59 and 936.20 is: 1,404.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276.11 : 4,914.59 = 936.20 : x
  2. Step 2: Convert to fraction form
    3,276.11/4,914.59 = 936.20/x
  3. Step 3: Cross multiply
    3,276.11x = 4,914.59 × 936.20
  4. Step 4: Simplify right side
    3,276.11x = 4,601,009.90
  5. Step 5: Solve for x
    x = 4,601,009.90/3,276.11
  6. Step 6: Final answer
    x = 1,404.41

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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.