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Finding the Third Proportional to 8,913 and 13,862.50

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Solution

The third proportional to 8,913 and 13,862.50 is: 21,560.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913 : 13,862.50 = 13,862.50 : x
  2. Step 2: Convert to fraction form
    8,913/13,862.50 = 13,862.50/x
  3. Step 3: Cross multiply
    8,913x = 13,862.50 × 13,862.50
  4. Step 4: Simplify right side
    8,913x = 192,168,906.25
  5. Step 5: Solve for x
    x = 192,168,906.25/8,913
  6. Step 6: Final answer
    x = 21,560.52

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.