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Finding the Fourth Proportional to 957.52, 1,318.53 and 833.23

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Solution

The fourth proportional to 957.52, 1,318.53 and 833.23 is: 1,147.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.52 : 1,318.53 = 833.23 : x
  2. Step 2: Convert to fraction form
    957.52/1,318.53 = 833.23/x
  3. Step 3: Cross multiply
    957.52x = 1,318.53 × 833.23
  4. Step 4: Simplify right side
    957.52x = 1,098,638.75
  5. Step 5: Solve for x
    x = 1,098,638.75/957.52
  6. Step 6: Final answer
    x = 1,147.38

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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.