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Finding the Fourth Proportional to 48,669.74, 73,009.81 and 20,592.63

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Solution

The fourth proportional to 48,669.74, 73,009.81 and 20,592.63 is: 30,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,669.74 : 73,009.81 = 20,592.63 : x
  2. Step 2: Convert to fraction form
    48,669.74/73,009.81 = 20,592.63/x
  3. Step 3: Cross multiply
    48,669.74x = 73,009.81 × 20,592.63
  4. Step 4: Simplify right side
    48,669.74x = 1,503,464,003.70
  5. Step 5: Solve for x
    x = 1,503,464,003.70/48,669.74
  6. Step 6: Final answer
    x = 30,891.15

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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.