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Finding the Fourth Proportional to 39,552.66, 54,582.66 and 21,647.66

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Solution

The fourth proportional to 39,552.66, 54,582.66 and 21,647.66 is: 29,873.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,552.66 : 54,582.66 = 21,647.66 : x
  2. Step 2: Convert to fraction form
    39,552.66/54,582.66 = 21,647.66/x
  3. Step 3: Cross multiply
    39,552.66x = 54,582.66 × 21,647.66
  4. Step 4: Simplify right side
    39,552.66x = 1,181,586,865.58
  5. Step 5: Solve for x
    x = 1,181,586,865.58/39,552.66
  6. Step 6: Final answer
    x = 29,873.76

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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.