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Finding the Fourth Proportional to 968.28, 1,333.62 and 837.24

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Solution

The fourth proportional to 968.28, 1,333.62 and 837.24 is: 1,153.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.28 : 1,333.62 = 837.24 : x
  2. Step 2: Convert to fraction form
    968.28/1,333.62 = 837.24/x
  3. Step 3: Cross multiply
    968.28x = 1,333.62 × 837.24
  4. Step 4: Simplify right side
    968.28x = 1,116,560.01
  5. Step 5: Solve for x
    x = 1,116,560.01/968.28
  6. Step 6: Final answer
    x = 1,153.14

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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.