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Finding the Fourth Proportional to 48,879.64, 73,319.46 and 13,814.74

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Solution

The fourth proportional to 48,879.64, 73,319.46 and 13,814.74 is: 20,722.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,879.64 : 73,319.46 = 13,814.74 : x
  2. Step 2: Convert to fraction form
    48,879.64/73,319.46 = 13,814.74/x
  3. Step 3: Cross multiply
    48,879.64x = 73,319.46 × 13,814.74
  4. Step 4: Simplify right side
    48,879.64x = 1,012,889,276.84
  5. Step 5: Solve for x
    x = 1,012,889,276.84/48,879.64
  6. Step 6: Final answer
    x = 20,722.11

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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.