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Finding the Third Proportional to 5,098 and 7,987.50

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Solution

The third proportional to 5,098 and 7,987.50 is: 12,514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,098 : 7,987.50 = 7,987.50 : x
  2. Step 2: Convert to fraction form
    5,098/7,987.50 = 7,987.50/x
  3. Step 3: Cross multiply
    5,098x = 7,987.50 × 7,987.50
  4. Step 4: Simplify right side
    5,098x = 63,800,156.25
  5. Step 5: Solve for x
    x = 63,800,156.25/5,098
  6. Step 6: Final answer
    x = 12,514.74

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.