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Finding the Fourth Proportional to 57,268, 79,064.40 and 37,430.56

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Solution

The fourth proportional to 57,268, 79,064.40 and 37,430.56 is: 51,676.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,268 : 79,064.40 = 37,430.56 : x
  2. Step 2: Convert to fraction form
    57,268/79,064.40 = 37,430.56/x
  3. Step 3: Cross multiply
    57,268x = 79,064.40 × 37,430.56
  4. Step 4: Simplify right side
    57,268x = 2,959,424,768.06
  5. Step 5: Solve for x
    x = 2,959,424,768.06/57,268
  6. Step 6: Final answer
    x = 51,676.76

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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.