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Finding the Third Proportional to 18,172.50 and 26,664

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Solution

The third proportional to 18,172.50 and 26,664 is: 39,123.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.50 : 26,664 = 26,664 : x
  2. Step 2: Convert to fraction form
    18,172.50/26,664 = 26,664/x
  3. Step 3: Cross multiply
    18,172.50x = 26,664 × 26,664
  4. Step 4: Simplify right side
    18,172.50x = 710,968,896
  5. Step 5: Solve for x
    x = 710,968,896/18,172.50
  6. Step 6: Final answer
    x = 39,123.34

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.