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Finding the Fourth Proportional to 2,217.60, 3,313.44 and 2,217.60

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Solution

The fourth proportional to 2,217.60, 3,313.44 and 2,217.60 is: 3,313.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.60 : 3,313.44 = 2,217.60 : x
  2. Step 2: Convert to fraction form
    2,217.60/3,313.44 = 2,217.60/x
  3. Step 3: Cross multiply
    2,217.60x = 3,313.44 × 2,217.60
  4. Step 4: Simplify right side
    2,217.60x = 7,347,884.54
  5. Step 5: Solve for x
    x = 7,347,884.54/2,217.60
  6. Step 6: Final answer
    x = 3,313.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.