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Finding the Fourth Proportional to 13,796.84, 19,040.02 and 8,494.68

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Solution

The fourth proportional to 13,796.84, 19,040.02 and 8,494.68 is: 11,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,796.84 : 19,040.02 = 8,494.68 : x
  2. Step 2: Convert to fraction form
    13,796.84/19,040.02 = 8,494.68/x
  3. Step 3: Cross multiply
    13,796.84x = 19,040.02 × 8,494.68
  4. Step 4: Simplify right side
    13,796.84x = 161,738,877.09
  5. Step 5: Solve for x
    x = 161,738,877.09/13,796.84
  6. Step 6: Final answer
    x = 11,722.89

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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.