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Finding the Third Proportional to 13,433.63 and 20,871

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Solution

The third proportional to 13,433.63 and 20,871 is: 32,425.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.63 : 20,871 = 20,871 : x
  2. Step 2: Convert to fraction form
    13,433.63/20,871 = 20,871/x
  3. Step 3: Cross multiply
    13,433.63x = 20,871 × 20,871
  4. Step 4: Simplify right side
    13,433.63x = 435,598,641
  5. Step 5: Solve for x
    x = 435,598,641/13,433.63
  6. Step 6: Final answer
    x = 32,425.99

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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.