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Finding the Fourth Proportional to 2,136.43, 3,204.62 and 675.58

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Solution

The fourth proportional to 2,136.43, 3,204.62 and 675.58 is: 1,013.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.43 : 3,204.62 = 675.58 : x
  2. Step 2: Convert to fraction form
    2,136.43/3,204.62 = 675.58/x
  3. Step 3: Cross multiply
    2,136.43x = 3,204.62 × 675.58
  4. Step 4: Simplify right side
    2,136.43x = 2,164,986.88
  5. Step 5: Solve for x
    x = 2,164,986.88/2,136.43
  6. Step 6: Final answer
    x = 1,013.37

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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.