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Finding the Third Proportional to 3,653 and 7,985.50

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Solution

The third proportional to 3,653 and 7,985.50 is: 17,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653 : 7,985.50 = 7,985.50 : x
  2. Step 2: Convert to fraction form
    3,653/7,985.50 = 7,985.50/x
  3. Step 3: Cross multiply
    3,653x = 7,985.50 × 7,985.50
  4. Step 4: Simplify right side
    3,653x = 63,768,210.25
  5. Step 5: Solve for x
    x = 63,768,210.25/3,653
  6. Step 6: Final answer
    x = 17,456.39

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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.