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Finding the Fourth Proportional to 2,705.88, 4,058.97 and 758.24

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Solution

The fourth proportional to 2,705.88, 4,058.97 and 758.24 is: 1,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,705.88 : 4,058.97 = 758.24 : x
  2. Step 2: Convert to fraction form
    2,705.88/4,058.97 = 758.24/x
  3. Step 3: Cross multiply
    2,705.88x = 4,058.97 × 758.24
  4. Step 4: Simplify right side
    2,705.88x = 3,077,653.12
  5. Step 5: Solve for x
    x = 3,077,653.12/2,705.88
  6. Step 6: Final answer
    x = 1,137.39

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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.