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Finding the Third Proportional to 7,319 and 15,749.50

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Solution

The third proportional to 7,319 and 15,749.50 is: 33,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319 : 15,749.50 = 15,749.50 : x
  2. Step 2: Convert to fraction form
    7,319/15,749.50 = 15,749.50/x
  3. Step 3: Cross multiply
    7,319x = 15,749.50 × 15,749.50
  4. Step 4: Simplify right side
    7,319x = 248,046,750.25
  5. Step 5: Solve for x
    x = 248,046,750.25/7,319
  6. Step 6: Final answer
    x = 33,890.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.