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Finding the Third Proportional to 19,902 and 29,299.50

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Solution

The third proportional to 19,902 and 29,299.50 is: 43,134.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,902 : 29,299.50 = 29,299.50 : x
  2. Step 2: Convert to fraction form
    19,902/29,299.50 = 29,299.50/x
  3. Step 3: Cross multiply
    19,902x = 29,299.50 × 29,299.50
  4. Step 4: Simplify right side
    19,902x = 858,460,700.25
  5. Step 5: Solve for x
    x = 858,460,700.25/19,902
  6. Step 6: Final answer
    x = 43,134.39

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.