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Finding the Third Proportional to 63.63 and 98.50

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Solution

The third proportional to 63.63 and 98.50 is: 152.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.63 : 98.50 = 98.50 : x
  2. Step 2: Convert to fraction form
    63.63/98.50 = 98.50/x
  3. Step 3: Cross multiply
    63.63x = 98.50 × 98.50
  4. Step 4: Simplify right side
    63.63x = 9,702.25
  5. Step 5: Solve for x
    x = 9,702.25/63.63
  6. Step 6: Final answer
    x = 152.49

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.