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Finding the Fourth Proportional to 57,466.51, 79,301.78 and 31,972.03

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Solution

The fourth proportional to 57,466.51, 79,301.78 and 31,972.03 is: 44,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,466.51 : 79,301.78 = 31,972.03 : x
  2. Step 2: Convert to fraction form
    57,466.51/79,301.78 = 31,972.03/x
  3. Step 3: Cross multiply
    57,466.51x = 79,301.78 × 31,972.03
  4. Step 4: Simplify right side
    57,466.51x = 2,535,438,729.35
  5. Step 5: Solve for x
    x = 2,535,438,729.35/57,466.51
  6. Step 6: Final answer
    x = 44,120.28

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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.