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Finding the Fourth Proportional to 3,575.91, 5,367.32 and 1,728.32

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Solution

The fourth proportional to 3,575.91, 5,367.32 and 1,728.32 is: 2,594.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,575.91 : 5,367.32 = 1,728.32 : x
  2. Step 2: Convert to fraction form
    3,575.91/5,367.32 = 1,728.32/x
  3. Step 3: Cross multiply
    3,575.91x = 5,367.32 × 1,728.32
  4. Step 4: Simplify right side
    3,575.91x = 9,276,411.02
  5. Step 5: Solve for x
    x = 9,276,411.02/3,575.91
  6. Step 6: Final answer
    x = 2,594.14

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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.