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Finding the Fourth Proportional to 2,358.81, 3,255.09 and 1,350.49

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Solution

The fourth proportional to 2,358.81, 3,255.09 and 1,350.49 is: 1,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,358.81 : 3,255.09 = 1,350.49 : x
  2. Step 2: Convert to fraction form
    2,358.81/3,255.09 = 1,350.49/x
  3. Step 3: Cross multiply
    2,358.81x = 3,255.09 × 1,350.49
  4. Step 4: Simplify right side
    2,358.81x = 4,395,959.02
  5. Step 5: Solve for x
    x = 4,395,959.02/2,358.81
  6. Step 6: Final answer
    x = 1,863.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.