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Finding the Fourth Proportional to 62,404.84, 86,163.78 and 38,564.20

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Solution

The fourth proportional to 62,404.84, 86,163.78 and 38,564.20 is: 53,246.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,404.84 : 86,163.78 = 38,564.20 : x
  2. Step 2: Convert to fraction form
    62,404.84/86,163.78 = 38,564.20/x
  3. Step 3: Cross multiply
    62,404.84x = 86,163.78 × 38,564.20
  4. Step 4: Simplify right side
    62,404.84x = 3,322,837,244.68
  5. Step 5: Solve for x
    x = 3,322,837,244.68/62,404.84
  6. Step 6: Final answer
    x = 53,246.47

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1.5x scale

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.