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Finding the Fourth Proportional to 2,691.48, 3,714.78 and 1,696.08

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Solution

The fourth proportional to 2,691.48, 3,714.78 and 1,696.08 is: 2,340.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.48 : 3,714.78 = 1,696.08 : x
  2. Step 2: Convert to fraction form
    2,691.48/3,714.78 = 1,696.08/x
  3. Step 3: Cross multiply
    2,691.48x = 3,714.78 × 1,696.08
  4. Step 4: Simplify right side
    2,691.48x = 6,300,564.06
  5. Step 5: Solve for x
    x = 6,300,564.06/2,691.48
  6. Step 6: Final answer
    x = 2,340.93

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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.