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Finding the Third Proportional to 15,549 and 25,915.50

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Solution

The third proportional to 15,549 and 25,915.50 is: 43,193.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549 : 25,915.50 = 25,915.50 : x
  2. Step 2: Convert to fraction form
    15,549/25,915.50 = 25,915.50/x
  3. Step 3: Cross multiply
    15,549x = 25,915.50 × 25,915.50
  4. Step 4: Simplify right side
    15,549x = 671,613,140.25
  5. Step 5: Solve for x
    x = 671,613,140.25/15,549
  6. Step 6: Final answer
    x = 43,193.33

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.