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Finding the Third Proportional to 15,520 and 23,986

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Solution

The third proportional to 15,520 and 23,986 is: 37,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520 : 23,986 = 23,986 : x
  2. Step 2: Convert to fraction form
    15,520/23,986 = 23,986/x
  3. Step 3: Cross multiply
    15,520x = 23,986 × 23,986
  4. Step 4: Simplify right side
    15,520x = 575,328,196
  5. Step 5: Solve for x
    x = 575,328,196/15,520
  6. Step 6: Final answer
    x = 37,070.12

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.