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Finding the Fourth Proportional to 1,063.13, 1,593.91 and 766.16

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Solution

The fourth proportional to 1,063.13, 1,593.91 and 766.16 is: 1,148.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.13 : 1,593.91 = 766.16 : x
  2. Step 2: Convert to fraction form
    1,063.13/1,593.91 = 766.16/x
  3. Step 3: Cross multiply
    1,063.13x = 1,593.91 × 766.16
  4. Step 4: Simplify right side
    1,063.13x = 1,221,198.02
  5. Step 5: Solve for x
    x = 1,221,198.02/1,063.13
  6. Step 6: Final answer
    x = 1,148.68

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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.