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Finding the Fourth Proportional to 3,666.42, 5,058.41 and 2,072.88

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Solution

The fourth proportional to 3,666.42, 5,058.41 and 2,072.88 is: 2,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.42 : 5,058.41 = 2,072.88 : x
  2. Step 2: Convert to fraction form
    3,666.42/5,058.41 = 2,072.88/x
  3. Step 3: Cross multiply
    3,666.42x = 5,058.41 × 2,072.88
  4. Step 4: Simplify right side
    3,666.42x = 10,485,466.56
  5. Step 5: Solve for x
    x = 10,485,466.56/3,666.42
  6. Step 6: Final answer
    x = 2,859.87

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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.