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Finding the Fourth Proportional to 48,964.40, 73,446.60 and 12,028.40

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Solution

The fourth proportional to 48,964.40, 73,446.60 and 12,028.40 is: 18,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,964.40 : 73,446.60 = 12,028.40 : x
  2. Step 2: Convert to fraction form
    48,964.40/73,446.60 = 12,028.40/x
  3. Step 3: Cross multiply
    48,964.40x = 73,446.60 × 12,028.40
  4. Step 4: Simplify right side
    48,964.40x = 883,445,083.44
  5. Step 5: Solve for x
    x = 883,445,083.44/48,964.40
  6. Step 6: Final answer
    x = 18,042.60

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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.