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Finding the Fourth Proportional to 2,583.90, 3,876.21 and 940.26

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Solution

The fourth proportional to 2,583.90, 3,876.21 and 940.26 is: 1,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,583.90 : 3,876.21 = 940.26 : x
  2. Step 2: Convert to fraction form
    2,583.90/3,876.21 = 940.26/x
  3. Step 3: Cross multiply
    2,583.90x = 3,876.21 × 940.26
  4. Step 4: Simplify right side
    2,583.90x = 3,644,645.21
  5. Step 5: Solve for x
    x = 3,644,645.21/2,583.90
  6. Step 6: Final answer
    x = 1,410.52

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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.