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Finding the Third Proportional to 18,983 and 28,943

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Solution

The third proportional to 18,983 and 28,943 is: 44,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983 : 28,943 = 28,943 : x
  2. Step 2: Convert to fraction form
    18,983/28,943 = 28,943/x
  3. Step 3: Cross multiply
    18,983x = 28,943 × 28,943
  4. Step 4: Simplify right side
    18,983x = 837,697,249
  5. Step 5: Solve for x
    x = 837,697,249/18,983
  6. Step 6: Final answer
    x = 44,128.81

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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.