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Finding the Fourth Proportional to 57,881.72, 79,863.90 and 35,232.50

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Solution

The fourth proportional to 57,881.72, 79,863.90 and 35,232.50 is: 48,613.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,881.72 : 79,863.90 = 35,232.50 : x
  2. Step 2: Convert to fraction form
    57,881.72/79,863.90 = 35,232.50/x
  3. Step 3: Cross multiply
    57,881.72x = 79,863.90 × 35,232.50
  4. Step 4: Simplify right side
    57,881.72x = 2,813,804,856.75
  5. Step 5: Solve for x
    x = 2,813,804,856.75/57,881.72
  6. Step 6: Final answer
    x = 48,613.01

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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.