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Finding the Third Proportional to 16,218.75 and 35,511

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Solution

The third proportional to 16,218.75 and 35,511 is: 77,751.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.75 : 35,511 = 35,511 : x
  2. Step 2: Convert to fraction form
    16,218.75/35,511 = 35,511/x
  3. Step 3: Cross multiply
    16,218.75x = 35,511 × 35,511
  4. Step 4: Simplify right side
    16,218.75x = 1,261,031,121
  5. Step 5: Solve for x
    x = 1,261,031,121/16,218.75
  6. Step 6: Final answer
    x = 77,751.44

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.