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Finding the Third Proportional to 25,720 and 56,623

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Solution

The third proportional to 25,720 and 56,623 is: 124,656.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,720 : 56,623 = 56,623 : x
  2. Step 2: Convert to fraction form
    25,720/56,623 = 56,623/x
  3. Step 3: Cross multiply
    25,720x = 56,623 × 56,623
  4. Step 4: Simplify right side
    25,720x = 3,206,164,129
  5. Step 5: Solve for x
    x = 3,206,164,129/25,720
  6. Step 6: Final answer
    x = 124,656.46

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.