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Finding the Fourth Proportional to 2,714.32, 3,745.79 and 1,472.32

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Solution

The fourth proportional to 2,714.32, 3,745.79 and 1,472.32 is: 2,031.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,714.32 : 3,745.79 = 1,472.32 : x
  2. Step 2: Convert to fraction form
    2,714.32/3,745.79 = 1,472.32/x
  3. Step 3: Cross multiply
    2,714.32x = 3,745.79 × 1,472.32
  4. Step 4: Simplify right side
    2,714.32x = 5,515,001.53
  5. Step 5: Solve for x
    x = 5,515,001.53/2,714.32
  6. Step 6: Final answer
    x = 2,031.82

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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.