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Finding the Fourth Proportional to 48,739.50, 73,109.61 and 11,803.50

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Solution

The fourth proportional to 48,739.50, 73,109.61 and 11,803.50 is: 17,705.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,739.50 : 73,109.61 = 11,803.50 : x
  2. Step 2: Convert to fraction form
    48,739.50/73,109.61 = 11,803.50/x
  3. Step 3: Cross multiply
    48,739.50x = 73,109.61 × 11,803.50
  4. Step 4: Simplify right side
    48,739.50x = 862,949,281.64
  5. Step 5: Solve for x
    x = 862,949,281.64/48,739.50
  6. Step 6: Final answer
    x = 17,705.34

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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.