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Finding the Fourth Proportional to 94.39, 130.26 and 52.96

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Solution

The fourth proportional to 94.39, 130.26 and 52.96 is: 73.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.39 : 130.26 = 52.96 : x
  2. Step 2: Convert to fraction form
    94.39/130.26 = 52.96/x
  3. Step 3: Cross multiply
    94.39x = 130.26 × 52.96
  4. Step 4: Simplify right side
    94.39x = 6,898.57
  5. Step 5: Solve for x
    x = 6,898.57/94.39
  6. Step 6: Final answer
    x = 73.09

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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.