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Finding the Third Proportional to 20,282.63 and 31,195.13

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Solution

The third proportional to 20,282.63 and 31,195.13 is: 47,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282.63 : 31,195.13 = 31,195.13 : x
  2. Step 2: Convert to fraction form
    20,282.63/31,195.13 = 31,195.13/x
  3. Step 3: Cross multiply
    20,282.63x = 31,195.13 × 31,195.13
  4. Step 4: Simplify right side
    20,282.63x = 973,135,823.77
  5. Step 5: Solve for x
    x = 973,135,823.77/20,282.63
  6. Step 6: Final answer
    x = 47,978.79

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.