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Finding the Third Proportional to 21,110.63 and 31,752

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Solution

The third proportional to 21,110.63 and 31,752 is: 47,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,110.63 : 31,752 = 31,752 : x
  2. Step 2: Convert to fraction form
    21,110.63/31,752 = 31,752/x
  3. Step 3: Cross multiply
    21,110.63x = 31,752 × 31,752
  4. Step 4: Simplify right side
    21,110.63x = 1,008,189,504
  5. Step 5: Solve for x
    x = 1,008,189,504/21,110.63
  6. Step 6: Final answer
    x = 47,757.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.