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Finding the Fourth Proportional to 31,797.80, 43,881.48 and 17,458.96

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Solution

The fourth proportional to 31,797.80, 43,881.48 and 17,458.96 is: 24,093.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,797.80 : 43,881.48 = 17,458.96 : x
  2. Step 2: Convert to fraction form
    31,797.80/43,881.48 = 17,458.96/x
  3. Step 3: Cross multiply
    31,797.80x = 43,881.48 × 17,458.96
  4. Step 4: Simplify right side
    31,797.80x = 766,125,004.06
  5. Step 5: Solve for x
    x = 766,125,004.06/31,797.80
  6. Step 6: Final answer
    x = 24,093.65

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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.