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Finding the Fourth Proportional to 48,655.38, 72,840.80 and 43,986.08

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Solution

The fourth proportional to 48,655.38, 72,840.80 and 43,986.08 is: 65,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,655.38 : 72,840.80 = 43,986.08 : x
  2. Step 2: Convert to fraction form
    48,655.38/72,840.80 = 43,986.08/x
  3. Step 3: Cross multiply
    48,655.38x = 72,840.80 × 43,986.08
  4. Step 4: Simplify right side
    48,655.38x = 3,203,981,256.06
  5. Step 5: Solve for x
    x = 3,203,981,256.06/48,655.38
  6. Step 6: Final answer
    x = 65,850.50

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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.