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Finding the Third Proportional to 7,648.50 and 15,774

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Solution

The third proportional to 7,648.50 and 15,774 is: 32,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,648.50 : 15,774 = 15,774 : x
  2. Step 2: Convert to fraction form
    7,648.50/15,774 = 15,774/x
  3. Step 3: Cross multiply
    7,648.50x = 15,774 × 15,774
  4. Step 4: Simplify right side
    7,648.50x = 248,819,076
  5. Step 5: Solve for x
    x = 248,819,076/7,648.50
  6. Step 6: Final answer
    x = 32,531.75

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.