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Finding the Third Proportional to 18,913.50 and 29,605.50

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Solution

The third proportional to 18,913.50 and 29,605.50 is: 46,341.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.50 : 29,605.50 = 29,605.50 : x
  2. Step 2: Convert to fraction form
    18,913.50/29,605.50 = 29,605.50/x
  3. Step 3: Cross multiply
    18,913.50x = 29,605.50 × 29,605.50
  4. Step 4: Simplify right side
    18,913.50x = 876,485,630.25
  5. Step 5: Solve for x
    x = 876,485,630.25/18,913.50
  6. Step 6: Final answer
    x = 46,341.80

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.