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Finding the Fourth Proportional to 1,562.14, 2,342.76 and 729.26

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Solution

The fourth proportional to 1,562.14, 2,342.76 and 729.26 is: 1,093.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562.14 : 2,342.76 = 729.26 : x
  2. Step 2: Convert to fraction form
    1,562.14/2,342.76 = 729.26/x
  3. Step 3: Cross multiply
    1,562.14x = 2,342.76 × 729.26
  4. Step 4: Simplify right side
    1,562.14x = 1,708,481.16
  5. Step 5: Solve for x
    x = 1,708,481.16/1,562.14
  6. Step 6: Final answer
    x = 1,093.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.