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Finding the Fourth Proportional to 2,166.63, 3,250.28 and 705.44

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Solution

The fourth proportional to 2,166.63, 3,250.28 and 705.44 is: 1,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.63 : 3,250.28 = 705.44 : x
  2. Step 2: Convert to fraction form
    2,166.63/3,250.28 = 705.44/x
  3. Step 3: Cross multiply
    2,166.63x = 3,250.28 × 705.44
  4. Step 4: Simplify right side
    2,166.63x = 2,292,857.74
  5. Step 5: Solve for x
    x = 2,292,857.74/2,166.63
  6. Step 6: Final answer
    x = 1,058.26

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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.