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Finding the Fourth Proportional to 3,714.51, 5,571.90 and 1,249.41

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Solution

The fourth proportional to 3,714.51, 5,571.90 and 1,249.41 is: 1,874.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.51 : 5,571.90 = 1,249.41 : x
  2. Step 2: Convert to fraction form
    3,714.51/5,571.90 = 1,249.41/x
  3. Step 3: Cross multiply
    3,714.51x = 5,571.90 × 1,249.41
  4. Step 4: Simplify right side
    3,714.51x = 6,961,587.58
  5. Step 5: Solve for x
    x = 6,961,587.58/3,714.51
  6. Step 6: Final answer
    x = 1,874.16

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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.