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Finding the Third Proportional to 18,697.50 and 29,490.75

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Solution

The third proportional to 18,697.50 and 29,490.75 is: 46,514.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.50 : 29,490.75 = 29,490.75 : x
  2. Step 2: Convert to fraction form
    18,697.50/29,490.75 = 29,490.75/x
  3. Step 3: Cross multiply
    18,697.50x = 29,490.75 × 29,490.75
  4. Step 4: Simplify right side
    18,697.50x = 869,704,335.56
  5. Step 5: Solve for x
    x = 869,704,335.56/18,697.50
  6. Step 6: Final answer
    x = 46,514.47

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.