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Finding the Fourth Proportional to 12,224.22, 16,866.53 and 6,919.03

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Solution

The fourth proportional to 12,224.22, 16,866.53 and 6,919.03 is: 9,546.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.22 : 16,866.53 = 6,919.03 : x
  2. Step 2: Convert to fraction form
    12,224.22/16,866.53 = 6,919.03/x
  3. Step 3: Cross multiply
    12,224.22x = 16,866.53 × 6,919.03
  4. Step 4: Simplify right side
    12,224.22x = 116,700,027.07
  5. Step 5: Solve for x
    x = 116,700,027.07/12,224.22
  6. Step 6: Final answer
    x = 9,546.62

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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.