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Finding the Fourth Proportional to 61.89, 92.93 and 46.46

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Solution

The fourth proportional to 61.89, 92.93 and 46.46 is: 69.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.89 : 92.93 = 46.46 : x
  2. Step 2: Convert to fraction form
    61.89/92.93 = 46.46/x
  3. Step 3: Cross multiply
    61.89x = 92.93 × 46.46
  4. Step 4: Simplify right side
    61.89x = 4,317.92
  5. Step 5: Solve for x
    x = 4,317.92/61.89
  6. Step 6: Final answer
    x = 69.77

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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.