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Finding the Fourth Proportional to 64,800, 89,447.04 and 44,939.52

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Solution

The fourth proportional to 64,800, 89,447.04 and 44,939.52 is: 62,032.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,800 : 89,447.04 = 44,939.52 : x
  2. Step 2: Convert to fraction form
    64,800/89,447.04 = 44,939.52/x
  3. Step 3: Cross multiply
    64,800x = 89,447.04 × 44,939.52
  4. Step 4: Simplify right side
    64,800x = 4,019,707,043.02
  5. Step 5: Solve for x
    x = 4,019,707,043.02/64,800
  6. Step 6: Final answer
    x = 62,032.52

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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.