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Finding the Fourth Proportional to 29,447.52, 40,637.56 and 16,879.56

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Solution

The fourth proportional to 29,447.52, 40,637.56 and 16,879.56 is: 23,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,447.52 : 40,637.56 = 16,879.56 : x
  2. Step 2: Convert to fraction form
    29,447.52/40,637.56 = 16,879.56/x
  3. Step 3: Cross multiply
    29,447.52x = 40,637.56 × 16,879.56
  4. Step 4: Simplify right side
    29,447.52x = 685,944,132.27
  5. Step 5: Solve for x
    x = 685,944,132.27/29,447.52
  6. Step 6: Final answer
    x = 23,293.78

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1.5x scale

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.