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Finding the Third Proportional to 19,230.75 and 30,628.13

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Solution

The third proportional to 19,230.75 and 30,628.13 is: 48,780.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.75 : 30,628.13 = 30,628.13 : x
  2. Step 2: Convert to fraction form
    19,230.75/30,628.13 = 30,628.13/x
  3. Step 3: Cross multiply
    19,230.75x = 30,628.13 × 30,628.13
  4. Step 4: Simplify right side
    19,230.75x = 938,082,041.02
  5. Step 5: Solve for x
    x = 938,082,041.02/19,230.75
  6. Step 6: Final answer
    x = 48,780.31

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.