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Finding the Third Proportional to 46.13 and 121.50

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Solution

The third proportional to 46.13 and 121.50 is: 320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.13 : 121.50 = 121.50 : x
  2. Step 2: Convert to fraction form
    46.13/121.50 = 121.50/x
  3. Step 3: Cross multiply
    46.13x = 121.50 × 121.50
  4. Step 4: Simplify right side
    46.13x = 14,762.25
  5. Step 5: Solve for x
    x = 14,762.25/46.13
  6. Step 6: Final answer
    x = 320.05

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Why These Related Problems?

These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.