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Finding the Third Proportional to 15,776 and 23,990

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Solution

The third proportional to 15,776 and 23,990 is: 36,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,776 : 23,990 = 23,990 : x
  2. Step 2: Convert to fraction form
    15,776/23,990 = 23,990/x
  3. Step 3: Cross multiply
    15,776x = 23,990 × 23,990
  4. Step 4: Simplify right side
    15,776x = 575,520,100
  5. Step 5: Solve for x
    x = 575,520,100/15,776
  6. Step 6: Final answer
    x = 36,480.74

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.