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Finding the Fourth Proportional to 1,891.13, 2,610.11 and 1,063.13

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Solution

The fourth proportional to 1,891.13, 2,610.11 and 1,063.13 is: 1,467.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.13 : 2,610.11 = 1,063.13 : x
  2. Step 2: Convert to fraction form
    1,891.13/2,610.11 = 1,063.13/x
  3. Step 3: Cross multiply
    1,891.13x = 2,610.11 × 1,063.13
  4. Step 4: Simplify right side
    1,891.13x = 2,774,875.85
  5. Step 5: Solve for x
    x = 2,774,875.85/1,891.13
  6. Step 6: Final answer
    x = 1,467.31

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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.