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Finding the Third Proportional to 84,912 and 124,884

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Solution

The third proportional to 84,912 and 124,884 is: 183,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,912 : 124,884 = 124,884 : x
  2. Step 2: Convert to fraction form
    84,912/124,884 = 124,884/x
  3. Step 3: Cross multiply
    84,912x = 124,884 × 124,884
  4. Step 4: Simplify right side
    84,912x = 15,596,013,456
  5. Step 5: Solve for x
    x = 15,596,013,456/84,912
  6. Step 6: Final answer
    x = 183,672.67

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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.