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Finding the Fourth Proportional to 19,797.84, 27,324.54 and 11,840.94

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Solution

The fourth proportional to 19,797.84, 27,324.54 and 11,840.94 is: 16,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,797.84 : 27,324.54 = 11,840.94 : x
  2. Step 2: Convert to fraction form
    19,797.84/27,324.54 = 11,840.94/x
  3. Step 3: Cross multiply
    19,797.84x = 27,324.54 × 11,840.94
  4. Step 4: Simplify right side
    19,797.84x = 323,548,238.67
  5. Step 5: Solve for x
    x = 323,548,238.67/19,797.84
  6. Step 6: Final answer
    x = 16,342.60

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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.