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Finding the Fourth Proportional to 57,241.69, 78,993.53 and 34,885.69

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Solution

The fourth proportional to 57,241.69, 78,993.53 and 34,885.69 is: 48,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,241.69 : 78,993.53 = 34,885.69 : x
  2. Step 2: Convert to fraction form
    57,241.69/78,993.53 = 34,885.69/x
  3. Step 3: Cross multiply
    57,241.69x = 78,993.53 × 34,885.69
  4. Step 4: Simplify right side
    57,241.69x = 2,755,743,558.49
  5. Step 5: Solve for x
    x = 2,755,743,558.49/57,241.69
  6. Step 6: Final answer
    x = 48,142.25

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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.