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Finding the Third Proportional to 14,319 and 20,653.50

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Solution

The third proportional to 14,319 and 20,653.50 is: 29,790.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319 : 20,653.50 = 20,653.50 : x
  2. Step 2: Convert to fraction form
    14,319/20,653.50 = 20,653.50/x
  3. Step 3: Cross multiply
    14,319x = 20,653.50 × 20,653.50
  4. Step 4: Simplify right side
    14,319x = 426,567,062.25
  5. Step 5: Solve for x
    x = 426,567,062.25/14,319
  6. Step 6: Final answer
    x = 29,790.28

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.