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Finding the Fourth Proportional to 12,560.74, 18,840.65 and 5,067.54

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Solution

The fourth proportional to 12,560.74, 18,840.65 and 5,067.54 is: 7,601.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,560.74 : 18,840.65 = 5,067.54 : x
  2. Step 2: Convert to fraction form
    12,560.74/18,840.65 = 5,067.54/x
  3. Step 3: Cross multiply
    12,560.74x = 18,840.65 × 5,067.54
  4. Step 4: Simplify right side
    12,560.74x = 95,475,722.16
  5. Step 5: Solve for x
    x = 95,475,722.16/12,560.74
  6. Step 6: Final answer
    x = 7,601.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.