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Finding the Fourth Proportional to 51,224.99, 76,819.01 and 21,645.11

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Solution

The fourth proportional to 51,224.99, 76,819.01 and 21,645.11 is: 32,459.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,224.99 : 76,819.01 = 21,645.11 : x
  2. Step 2: Convert to fraction form
    51,224.99/76,819.01 = 21,645.11/x
  3. Step 3: Cross multiply
    51,224.99x = 76,819.01 × 21,645.11
  4. Step 4: Simplify right side
    51,224.99x = 1,662,756,005.36
  5. Step 5: Solve for x
    x = 1,662,756,005.36/51,224.99
  6. Step 6: Final answer
    x = 32,459.86

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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.