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Finding the Fourth Proportional to 2,714.30, 3,791.80 and 2,714.30

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Solution

The fourth proportional to 2,714.30, 3,791.80 and 2,714.30 is: 3,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,714.30 : 3,791.80 = 2,714.30 : x
  2. Step 2: Convert to fraction form
    2,714.30/3,791.80 = 2,714.30/x
  3. Step 3: Cross multiply
    2,714.30x = 3,791.80 × 2,714.30
  4. Step 4: Simplify right side
    2,714.30x = 10,292,082.74
  5. Step 5: Solve for x
    x = 10,292,082.74/2,714.30
  6. Step 6: Final answer
    x = 3,791.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.