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Finding the Third Proportional to 4,951.13 and 9,139.50

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Solution

The third proportional to 4,951.13 and 9,139.50 is: 16,871.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.13 : 9,139.50 = 9,139.50 : x
  2. Step 2: Convert to fraction form
    4,951.13/9,139.50 = 9,139.50/x
  3. Step 3: Cross multiply
    4,951.13x = 9,139.50 × 9,139.50
  4. Step 4: Simplify right side
    4,951.13x = 83,530,460.25
  5. Step 5: Solve for x
    x = 83,530,460.25/4,951.13
  6. Step 6: Final answer
    x = 16,871.01

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.