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Finding the Fourth Proportional to 48,461.31, 72,662.21 and 18,844.62

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Solution

The fourth proportional to 48,461.31, 72,662.21 and 18,844.62 is: 28,255.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,461.31 : 72,662.21 = 18,844.62 : x
  2. Step 2: Convert to fraction form
    48,461.31/72,662.21 = 18,844.62/x
  3. Step 3: Cross multiply
    48,461.31x = 72,662.21 × 18,844.62
  4. Step 4: Simplify right side
    48,461.31x = 1,369,291,641.59
  5. Step 5: Solve for x
    x = 1,369,291,641.59/48,461.31
  6. Step 6: Final answer
    x = 28,255.36

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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.