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Finding the Fourth Proportional to 48,773.81, 73,159.09 and 20,675.79

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Solution

The fourth proportional to 48,773.81, 73,159.09 and 20,675.79 is: 31,012.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,773.81 : 73,159.09 = 20,675.79 : x
  2. Step 2: Convert to fraction form
    48,773.81/73,159.09 = 20,675.79/x
  3. Step 3: Cross multiply
    48,773.81x = 73,159.09 × 20,675.79
  4. Step 4: Simplify right side
    48,773.81x = 1,512,621,929.74
  5. Step 5: Solve for x
    x = 1,512,621,929.74/48,773.81
  6. Step 6: Final answer
    x = 31,012.99

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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.