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Finding the Fourth Proportional to 45,791.78, 63,190.78 and 25,648.34

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Solution

The fourth proportional to 45,791.78, 63,190.78 and 25,648.34 is: 35,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,791.78 : 63,190.78 = 25,648.34 : x
  2. Step 2: Convert to fraction form
    45,791.78/63,190.78 = 25,648.34/x
  3. Step 3: Cross multiply
    45,791.78x = 63,190.78 × 25,648.34
  4. Step 4: Simplify right side
    45,791.78x = 1,620,738,230.23
  5. Step 5: Solve for x
    x = 1,620,738,230.23/45,791.78
  6. Step 6: Final answer
    x = 35,393.65

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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.