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Finding the Fourth Proportional to 1,635.84, 2,257.47 and 937.26

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Solution

The fourth proportional to 1,635.84, 2,257.47 and 937.26 is: 1,293.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.84 : 2,257.47 = 937.26 : x
  2. Step 2: Convert to fraction form
    1,635.84/2,257.47 = 937.26/x
  3. Step 3: Cross multiply
    1,635.84x = 2,257.47 × 937.26
  4. Step 4: Simplify right side
    1,635.84x = 2,115,836.33
  5. Step 5: Solve for x
    x = 2,115,836.33/1,635.84
  6. Step 6: Final answer
    x = 1,293.42

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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.