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Finding the Third Proportional to 14,257 and 21,385.50

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Solution

The third proportional to 14,257 and 21,385.50 is: 32,078.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257 : 21,385.50 = 21,385.50 : x
  2. Step 2: Convert to fraction form
    14,257/21,385.50 = 21,385.50/x
  3. Step 3: Cross multiply
    14,257x = 21,385.50 × 21,385.50
  4. Step 4: Simplify right side
    14,257x = 457,339,610.25
  5. Step 5: Solve for x
    x = 457,339,610.25/14,257
  6. Step 6: Final answer
    x = 32,078.25

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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.