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Finding the Third Proportional to 10,785 and 14,332.50

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Solution

The third proportional to 10,785 and 14,332.50 is: 19,046.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785 : 14,332.50 = 14,332.50 : x
  2. Step 2: Convert to fraction form
    10,785/14,332.50 = 14,332.50/x
  3. Step 3: Cross multiply
    10,785x = 14,332.50 × 14,332.50
  4. Step 4: Simplify right side
    10,785x = 205,420,556.25
  5. Step 5: Solve for x
    x = 205,420,556.25/10,785
  6. Step 6: Final answer
    x = 19,046.88

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.