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Finding the Fourth Proportional to 2,247.48, 3,371.24 and 786.63

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Solution

The fourth proportional to 2,247.48, 3,371.24 and 786.63 is: 1,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.48 : 3,371.24 = 786.63 : x
  2. Step 2: Convert to fraction form
    2,247.48/3,371.24 = 786.63/x
  3. Step 3: Cross multiply
    2,247.48x = 3,371.24 × 786.63
  4. Step 4: Simplify right side
    2,247.48x = 2,651,918.52
  5. Step 5: Solve for x
    x = 2,651,918.52/2,247.48
  6. Step 6: Final answer
    x = 1,179.95

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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.