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Finding the Third Proportional to 19,860 and 29,664

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Solution

The third proportional to 19,860 and 29,664 is: 44,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860 : 29,664 = 29,664 : x
  2. Step 2: Convert to fraction form
    19,860/29,664 = 29,664/x
  3. Step 3: Cross multiply
    19,860x = 29,664 × 29,664
  4. Step 4: Simplify right side
    19,860x = 879,952,896
  5. Step 5: Solve for x
    x = 879,952,896/19,860
  6. Step 6: Final answer
    x = 44,307.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.