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Finding the Fourth Proportional to 1,162.68, 1,739.22 and 1,064.44

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Solution

The fourth proportional to 1,162.68, 1,739.22 and 1,064.44 is: 1,592.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.68 : 1,739.22 = 1,064.44 : x
  2. Step 2: Convert to fraction form
    1,162.68/1,739.22 = 1,064.44/x
  3. Step 3: Cross multiply
    1,162.68x = 1,739.22 × 1,064.44
  4. Step 4: Simplify right side
    1,162.68x = 1,851,295.34
  5. Step 5: Solve for x
    x = 1,851,295.34/1,162.68
  6. Step 6: Final answer
    x = 1,592.27

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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.