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Finding the Fourth Proportional to 62.46, 93.18 and 61.65

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Solution

The fourth proportional to 62.46, 93.18 and 61.65 is: 91.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.46 : 93.18 = 61.65 : x
  2. Step 2: Convert to fraction form
    62.46/93.18 = 61.65/x
  3. Step 3: Cross multiply
    62.46x = 93.18 × 61.65
  4. Step 4: Simplify right side
    62.46x = 5,744.55
  5. Step 5: Solve for x
    x = 5,744.55/62.46
  6. Step 6: Final answer
    x = 91.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.