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Finding the Fourth Proportional to 62,859.21, 94,294.51 and 20,739.41

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Solution

The fourth proportional to 62,859.21, 94,294.51 and 20,739.41 is: 31,110.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,859.21 : 94,294.51 = 20,739.41 : x
  2. Step 2: Convert to fraction form
    62,859.21/94,294.51 = 20,739.41/x
  3. Step 3: Cross multiply
    62,859.21x = 94,294.51 × 20,739.41
  4. Step 4: Simplify right side
    62,859.21x = 1,955,612,333.92
  5. Step 5: Solve for x
    x = 1,955,612,333.92/62,859.21
  6. Step 6: Final answer
    x = 31,110.99

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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.