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Finding the Fourth Proportional to 11,976.44, 16,543.06 and 9,126.44

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Solution

The fourth proportional to 11,976.44, 16,543.06 and 9,126.44 is: 12,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.44 : 16,543.06 = 9,126.44 : x
  2. Step 2: Convert to fraction form
    11,976.44/16,543.06 = 9,126.44/x
  3. Step 3: Cross multiply
    11,976.44x = 16,543.06 × 9,126.44
  4. Step 4: Simplify right side
    11,976.44x = 150,979,244.51
  5. Step 5: Solve for x
    x = 150,979,244.51/11,976.44
  6. Step 6: Final answer
    x = 12,606.35

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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.