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Finding the Fourth Proportional to 62.60, 94.04 and 61.65

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Solution

The fourth proportional to 62.60, 94.04 and 61.65 is: 92.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.60 : 94.04 = 61.65 : x
  2. Step 2: Convert to fraction form
    62.60/94.04 = 61.65/x
  3. Step 3: Cross multiply
    62.60x = 94.04 × 61.65
  4. Step 4: Simplify right side
    62.60x = 5,797.26
  5. Step 5: Solve for x
    x = 5,797.26/62.60
  6. Step 6: Final answer
    x = 92.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.