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Finding the Fourth Proportional to 67.30, 92.94 and 46.63

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Solution

The fourth proportional to 67.30, 92.94 and 46.63 is: 64.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.30 : 92.94 = 46.63 : x
  2. Step 2: Convert to fraction form
    67.30/92.94 = 46.63/x
  3. Step 3: Cross multiply
    67.30x = 92.94 × 46.63
  4. Step 4: Simplify right side
    67.30x = 4,333.79
  5. Step 5: Solve for x
    x = 4,333.79/67.30
  6. Step 6: Final answer
    x = 64.40

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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.