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Finding the Fourth Proportional to 48,739.79, 73,094.79 and 20,659.31

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Solution

The fourth proportional to 48,739.79, 73,094.79 and 20,659.31 is: 30,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,739.79 : 73,094.79 = 20,659.31 : x
  2. Step 2: Convert to fraction form
    48,739.79/73,094.79 = 20,659.31/x
  3. Step 3: Cross multiply
    48,739.79x = 73,094.79 × 20,659.31
  4. Step 4: Simplify right side
    48,739.79x = 1,510,088,186.20
  5. Step 5: Solve for x
    x = 1,510,088,186.20/48,739.79
  6. Step 6: Final answer
    x = 30,982.66

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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.