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Finding the Fourth Proportional to 48,630.28, 72,945.44 and 11,694.28

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Solution

The fourth proportional to 48,630.28, 72,945.44 and 11,694.28 is: 17,541.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,630.28 : 72,945.44 = 11,694.28 : x
  2. Step 2: Convert to fraction form
    48,630.28/72,945.44 = 11,694.28/x
  3. Step 3: Cross multiply
    48,630.28x = 72,945.44 × 11,694.28
  4. Step 4: Simplify right side
    48,630.28x = 853,044,400.08
  5. Step 5: Solve for x
    x = 853,044,400.08/48,630.28
  6. Step 6: Final answer
    x = 17,541.42

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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.