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Finding the Fourth Proportional to 12,238.66, 16,896.36 and 8,059.06

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Solution

The fourth proportional to 12,238.66, 16,896.36 and 8,059.06 is: 11,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.66 : 16,896.36 = 8,059.06 : x
  2. Step 2: Convert to fraction form
    12,238.66/16,896.36 = 8,059.06/x
  3. Step 3: Cross multiply
    12,238.66x = 16,896.36 × 8,059.06
  4. Step 4: Simplify right side
    12,238.66x = 136,168,779.02
  5. Step 5: Solve for x
    x = 136,168,779.02/12,238.66
  6. Step 6: Final answer
    x = 11,126.12

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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.