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Finding the Fourth Proportional to 57,466.36, 79,258.59 and 39,327.79

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Solution

The fourth proportional to 57,466.36, 79,258.59 and 39,327.79 is: 54,241.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,466.36 : 79,258.59 = 39,327.79 : x
  2. Step 2: Convert to fraction form
    57,466.36/79,258.59 = 39,327.79/x
  3. Step 3: Cross multiply
    57,466.36x = 79,258.59 × 39,327.79
  4. Step 4: Simplify right side
    57,466.36x = 3,117,065,183.22
  5. Step 5: Solve for x
    x = 3,117,065,183.22/57,466.36
  6. Step 6: Final answer
    x = 54,241.56

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1.5x scale

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.