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Finding the Fourth Proportional to 56,729.03, 84,982.97 and 32,978.21

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Solution

The fourth proportional to 56,729.03, 84,982.97 and 32,978.21 is: 49,403.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,729.03 : 84,982.97 = 32,978.21 : x
  2. Step 2: Convert to fraction form
    56,729.03/84,982.97 = 32,978.21/x
  3. Step 3: Cross multiply
    56,729.03x = 84,982.97 × 32,978.21
  4. Step 4: Simplify right side
    56,729.03x = 2,802,585,888.61
  5. Step 5: Solve for x
    x = 2,802,585,888.61/56,729.03
  6. Step 6: Final answer
    x = 49,403.03

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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.