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Finding the Fourth Proportional to 2,893.57, 3,992.91 and 1,714.21

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Solution

The fourth proportional to 2,893.57, 3,992.91 and 1,714.21 is: 2,365.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.57 : 3,992.91 = 1,714.21 : x
  2. Step 2: Convert to fraction form
    2,893.57/3,992.91 = 1,714.21/x
  3. Step 3: Cross multiply
    2,893.57x = 3,992.91 × 1,714.21
  4. Step 4: Simplify right side
    2,893.57x = 6,844,686.25
  5. Step 5: Solve for x
    x = 6,844,686.25/2,893.57
  6. Step 6: Final answer
    x = 2,365.48

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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.