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Finding the Fourth Proportional to 57,853.49, 79,695.12 and 49,327.84

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Solution

The fourth proportional to 57,853.49, 79,695.12 and 49,327.84 is: 67,950.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,853.49 : 79,695.12 = 49,327.84 : x
  2. Step 2: Convert to fraction form
    57,853.49/79,695.12 = 49,327.84/x
  3. Step 3: Cross multiply
    57,853.49x = 79,695.12 × 49,327.84
  4. Step 4: Simplify right side
    57,853.49x = 3,931,187,548.25
  5. Step 5: Solve for x
    x = 3,931,187,548.25/57,853.49
  6. Step 6: Final answer
    x = 67,950.74

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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.