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Finding the Fourth Proportional to 32,791.72, 45,259.76 and 20,852.73

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Solution

The fourth proportional to 32,791.72, 45,259.76 and 20,852.73 is: 28,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,791.72 : 45,259.76 = 20,852.73 : x
  2. Step 2: Convert to fraction form
    32,791.72/45,259.76 = 20,852.73/x
  3. Step 3: Cross multiply
    32,791.72x = 45,259.76 × 20,852.73
  4. Step 4: Simplify right side
    32,791.72x = 943,789,555.14
  5. Step 5: Solve for x
    x = 943,789,555.14/32,791.72
  6. Step 6: Final answer
    x = 28,781.34

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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.