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Finding the Fourth Proportional to 48,174, 66,553.44 and 38,504.40

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Solution

The fourth proportional to 48,174, 66,553.44 and 38,504.40 is: 53,194.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,174 : 66,553.44 = 38,504.40 : x
  2. Step 2: Convert to fraction form
    48,174/66,553.44 = 38,504.40/x
  3. Step 3: Cross multiply
    48,174x = 66,553.44 × 38,504.40
  4. Step 4: Simplify right side
    48,174x = 2,562,600,275.14
  5. Step 5: Solve for x
    x = 2,562,600,275.14/48,174
  6. Step 6: Final answer
    x = 53,194.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.