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Finding the Third Proportional to 11,904.75 and 15,655.50

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Solution

The third proportional to 11,904.75 and 15,655.50 is: 20,587.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.75 : 15,655.50 = 15,655.50 : x
  2. Step 2: Convert to fraction form
    11,904.75/15,655.50 = 15,655.50/x
  3. Step 3: Cross multiply
    11,904.75x = 15,655.50 × 15,655.50
  4. Step 4: Simplify right side
    11,904.75x = 245,094,680.25
  5. Step 5: Solve for x
    x = 245,094,680.25/11,904.75
  6. Step 6: Final answer
    x = 20,587.97

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.