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Finding the Fourth Proportional to 12,797.76, 19,198.56 and 3,564.48

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Solution

The fourth proportional to 12,797.76, 19,198.56 and 3,564.48 is: 5,347.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.76 : 19,198.56 = 3,564.48 : x
  2. Step 2: Convert to fraction form
    12,797.76/19,198.56 = 3,564.48/x
  3. Step 3: Cross multiply
    12,797.76x = 19,198.56 × 3,564.48
  4. Step 4: Simplify right side
    12,797.76x = 68,432,883.15
  5. Step 5: Solve for x
    x = 68,432,883.15/12,797.76
  6. Step 6: Final answer
    x = 5,347.25

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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.