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Finding the Fourth Proportional to 62,361.32, 93,542.78 and 20,808.32

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Solution

The fourth proportional to 62,361.32, 93,542.78 and 20,808.32 is: 31,212.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,361.32 : 93,542.78 = 20,808.32 : x
  2. Step 2: Convert to fraction form
    62,361.32/93,542.78 = 20,808.32/x
  3. Step 3: Cross multiply
    62,361.32x = 93,542.78 × 20,808.32
  4. Step 4: Simplify right side
    62,361.32x = 1,946,467,632.22
  5. Step 5: Solve for x
    x = 1,946,467,632.22/62,361.32
  6. Step 6: Final answer
    x = 31,212.74

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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.