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Finding the Fourth Proportional to 64,786.26, 89,404.65 and 36,501.06

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Solution

The fourth proportional to 64,786.26, 89,404.65 and 36,501.06 is: 50,371.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,786.26 : 89,404.65 = 36,501.06 : x
  2. Step 2: Convert to fraction form
    64,786.26/89,404.65 = 36,501.06/x
  3. Step 3: Cross multiply
    64,786.26x = 89,404.65 × 36,501.06
  4. Step 4: Simplify right side
    64,786.26x = 3,263,364,493.93
  5. Step 5: Solve for x
    x = 3,263,364,493.93/64,786.26
  6. Step 6: Final answer
    x = 50,371.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.