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Finding the Fourth Proportional to 31,798.58, 43,879.85 and 17,650.31

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Solution

The fourth proportional to 31,798.58, 43,879.85 and 17,650.31 is: 24,356.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,798.58 : 43,879.85 = 17,650.31 : x
  2. Step 2: Convert to fraction form
    31,798.58/43,879.85 = 17,650.31/x
  3. Step 3: Cross multiply
    31,798.58x = 43,879.85 × 17,650.31
  4. Step 4: Simplify right side
    31,798.58x = 774,492,976.70
  5. Step 5: Solve for x
    x = 774,492,976.70/31,798.58
  6. Step 6: Final answer
    x = 24,356.21

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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.