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Finding the Fourth Proportional to 1,894.18, 2,613.81 and 1,097.38

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Solution

The fourth proportional to 1,894.18, 2,613.81 and 1,097.38 is: 1,514.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.18 : 2,613.81 = 1,097.38 : x
  2. Step 2: Convert to fraction form
    1,894.18/2,613.81 = 1,097.38/x
  3. Step 3: Cross multiply
    1,894.18x = 2,613.81 × 1,097.38
  4. Step 4: Simplify right side
    1,894.18x = 2,868,342.82
  5. Step 5: Solve for x
    x = 2,868,342.82/1,894.18
  6. Step 6: Final answer
    x = 1,514.29

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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.