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Finding the Fourth Proportional to 2,176.91, 3,265.58 and 696.24

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Solution

The fourth proportional to 2,176.91, 3,265.58 and 696.24 is: 1,044.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.91 : 3,265.58 = 696.24 : x
  2. Step 2: Convert to fraction form
    2,176.91/3,265.58 = 696.24/x
  3. Step 3: Cross multiply
    2,176.91x = 3,265.58 × 696.24
  4. Step 4: Simplify right side
    2,176.91x = 2,273,629.16
  5. Step 5: Solve for x
    x = 2,273,629.16/2,176.91
  6. Step 6: Final answer
    x = 1,044.43

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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.