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Finding the Fourth Proportional to 2,111.97, 2,913.97 and 1,514.34

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Solution

The fourth proportional to 2,111.97, 2,913.97 and 1,514.34 is: 2,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.97 : 2,913.97 = 1,514.34 : x
  2. Step 2: Convert to fraction form
    2,111.97/2,913.97 = 1,514.34/x
  3. Step 3: Cross multiply
    2,111.97x = 2,913.97 × 1,514.34
  4. Step 4: Simplify right side
    2,111.97x = 4,412,741.33
  5. Step 5: Solve for x
    x = 4,412,741.33/2,111.97
  6. Step 6: Final answer
    x = 2,089.40

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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.