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Finding the Third Proportional to 19,030.50 and 20,346.75

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Solution

The third proportional to 19,030.50 and 20,346.75 is: 21,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,030.50 : 20,346.75 = 20,346.75 : x
  2. Step 2: Convert to fraction form
    19,030.50/20,346.75 = 20,346.75/x
  3. Step 3: Cross multiply
    19,030.50x = 20,346.75 × 20,346.75
  4. Step 4: Simplify right side
    19,030.50x = 413,990,235.56
  5. Step 5: Solve for x
    x = 413,990,235.56/19,030.50
  6. Step 6: Final answer
    x = 21,754.04

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.