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Finding the Fourth Proportional to 48,570.72, 72,866.40 and 27,520.60

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Solution

The fourth proportional to 48,570.72, 72,866.40 and 27,520.60 is: 41,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,570.72 : 72,866.40 = 27,520.60 : x
  2. Step 2: Convert to fraction form
    48,570.72/72,866.40 = 27,520.60/x
  3. Step 3: Cross multiply
    48,570.72x = 72,866.40 × 27,520.60
  4. Step 4: Simplify right side
    48,570.72x = 2,005,327,047.84
  5. Step 5: Solve for x
    x = 2,005,327,047.84/48,570.72
  6. Step 6: Final answer
    x = 41,286.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.