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Finding the Fourth Proportional to 3,630.42, 5,008.84 and 2,058.21

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Solution

The fourth proportional to 3,630.42, 5,008.84 and 2,058.21 is: 2,839.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.42 : 5,008.84 = 2,058.21 : x
  2. Step 2: Convert to fraction form
    3,630.42/5,008.84 = 2,058.21/x
  3. Step 3: Cross multiply
    3,630.42x = 5,008.84 × 2,058.21
  4. Step 4: Simplify right side
    3,630.42x = 10,309,239.43
  5. Step 5: Solve for x
    x = 10,309,239.43/3,630.42
  6. Step 6: Final answer
    x = 2,839.68

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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.