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Finding the Third Proportional to 46.25 and 70.38

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Solution

The third proportional to 46.25 and 70.38 is: 107.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.25 : 70.38 = 70.38 : x
  2. Step 2: Convert to fraction form
    46.25/70.38 = 70.38/x
  3. Step 3: Cross multiply
    46.25x = 70.38 × 70.38
  4. Step 4: Simplify right side
    46.25x = 4,952.64
  5. Step 5: Solve for x
    x = 4,952.64/46.25
  6. Step 6: Final answer
    x = 107.08

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.