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Finding the Third Proportional to 12,551.25 and 19,445.63

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Solution

The third proportional to 12,551.25 and 19,445.63 is: 30,127.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.25 : 19,445.63 = 19,445.63 : x
  2. Step 2: Convert to fraction form
    12,551.25/19,445.63 = 19,445.63/x
  3. Step 3: Cross multiply
    12,551.25x = 19,445.63 × 19,445.63
  4. Step 4: Simplify right side
    12,551.25x = 378,132,331.64
  5. Step 5: Solve for x
    x = 378,132,331.64/12,551.25
  6. Step 6: Final answer
    x = 30,127.07

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.