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Finding the Fourth Proportional to 57,308.51, 85,940.90 and 22,239.97

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Solution

The fourth proportional to 57,308.51, 85,940.90 and 22,239.97 is: 33,351.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,308.51 : 85,940.90 = 22,239.97 : x
  2. Step 2: Convert to fraction form
    57,308.51/85,940.90 = 22,239.97/x
  3. Step 3: Cross multiply
    57,308.51x = 85,940.90 × 22,239.97
  4. Step 4: Simplify right side
    57,308.51x = 1,911,322,795.12
  5. Step 5: Solve for x
    x = 1,911,322,795.12/57,308.51
  6. Step 6: Final answer
    x = 33,351.46

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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.