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Finding the Fourth Proportional to 1,714, 2,365.90 and 1,067.74

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Solution

The fourth proportional to 1,714, 2,365.90 and 1,067.74 is: 1,473.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,714 : 2,365.90 = 1,067.74 : x
  2. Step 2: Convert to fraction form
    1,714/2,365.90 = 1,067.74/x
  3. Step 3: Cross multiply
    1,714x = 2,365.90 × 1,067.74
  4. Step 4: Simplify right side
    1,714x = 2,526,166.07
  5. Step 5: Solve for x
    x = 2,526,166.07/1,714
  6. Step 6: Final answer
    x = 1,473.84

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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.