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Finding the Fourth Proportional to 965.77, 1,333.52 and 892.06

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Solution

The fourth proportional to 965.77, 1,333.52 and 892.06 is: 1,231.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.77 : 1,333.52 = 892.06 : x
  2. Step 2: Convert to fraction form
    965.77/1,333.52 = 892.06/x
  3. Step 3: Cross multiply
    965.77x = 1,333.52 × 892.06
  4. Step 4: Simplify right side
    965.77x = 1,189,579.85
  5. Step 5: Solve for x
    x = 1,189,579.85/965.77
  6. Step 6: Final answer
    x = 1,231.74

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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.