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Finding the Third Proportional to 14,415.47 and 31,671

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Solution

The third proportional to 14,415.47 and 31,671 is: 69,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.47 : 31,671 = 31,671 : x
  2. Step 2: Convert to fraction form
    14,415.47/31,671 = 31,671/x
  3. Step 3: Cross multiply
    14,415.47x = 31,671 × 31,671
  4. Step 4: Simplify right side
    14,415.47x = 1,003,052,241
  5. Step 5: Solve for x
    x = 1,003,052,241/14,415.47
  6. Step 6: Final answer
    x = 69,581.66

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.