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Finding the Third Proportional to 18,646.88 and 28,242

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Solution

The third proportional to 18,646.88 and 28,242 is: 42,774.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646.88 : 28,242 = 28,242 : x
  2. Step 2: Convert to fraction form
    18,646.88/28,242 = 28,242/x
  3. Step 3: Cross multiply
    18,646.88x = 28,242 × 28,242
  4. Step 4: Simplify right side
    18,646.88x = 797,610,564
  5. Step 5: Solve for x
    x = 797,610,564/18,646.88
  6. Step 6: Final answer
    x = 42,774.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.