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Finding the Fourth Proportional to 11,999.66, 16,559.48 and 6,694.60

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Solution

The fourth proportional to 11,999.66, 16,559.48 and 6,694.60 is: 9,238.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.66 : 16,559.48 = 6,694.60 : x
  2. Step 2: Convert to fraction form
    11,999.66/16,559.48 = 6,694.60/x
  3. Step 3: Cross multiply
    11,999.66x = 16,559.48 × 6,694.60
  4. Step 4: Simplify right side
    11,999.66x = 110,859,094.81
  5. Step 5: Solve for x
    x = 110,859,094.81/11,999.66
  6. Step 6: Final answer
    x = 9,238.52

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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.