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Finding the Third Proportional to 13,257 and 19,621.50

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Solution

The third proportional to 13,257 and 19,621.50 is: 29,041.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257 : 19,621.50 = 19,621.50 : x
  2. Step 2: Convert to fraction form
    13,257/19,621.50 = 19,621.50/x
  3. Step 3: Cross multiply
    13,257x = 19,621.50 × 19,621.50
  4. Step 4: Simplify right side
    13,257x = 385,003,262.25
  5. Step 5: Solve for x
    x = 385,003,262.25/13,257
  6. Step 6: Final answer
    x = 29,041.51

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.