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Finding the Fourth Proportional to 48,400.92, 72,590.43 and 18,404.45

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Solution

The fourth proportional to 48,400.92, 72,590.43 and 18,404.45 is: 27,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,400.92 : 72,590.43 = 18,404.45 : x
  2. Step 2: Convert to fraction form
    48,400.92/72,590.43 = 18,404.45/x
  3. Step 3: Cross multiply
    48,400.92x = 72,590.43 × 18,404.45
  4. Step 4: Simplify right side
    48,400.92x = 1,335,986,939.41
  5. Step 5: Solve for x
    x = 1,335,986,939.41/48,400.92
  6. Step 6: Final answer
    x = 27,602.51

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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.