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Finding the Third Proportional to 4,070.25 and 8,788.50

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Solution

The third proportional to 4,070.25 and 8,788.50 is: 18,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,070.25 : 8,788.50 = 8,788.50 : x
  2. Step 2: Convert to fraction form
    4,070.25/8,788.50 = 8,788.50/x
  3. Step 3: Cross multiply
    4,070.25x = 8,788.50 × 8,788.50
  4. Step 4: Simplify right side
    4,070.25x = 77,237,732.25
  5. Step 5: Solve for x
    x = 77,237,732.25/4,070.25
  6. Step 6: Final answer
    x = 18,976.16

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.