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Finding the Third Proportional to 9,886.50 and 14,787

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Solution

The third proportional to 9,886.50 and 14,787 is: 22,116.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.50 : 14,787 = 14,787 : x
  2. Step 2: Convert to fraction form
    9,886.50/14,787 = 14,787/x
  3. Step 3: Cross multiply
    9,886.50x = 14,787 × 14,787
  4. Step 4: Simplify right side
    9,886.50x = 218,655,369
  5. Step 5: Solve for x
    x = 218,655,369/9,886.50
  6. Step 6: Final answer
    x = 22,116.56

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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.