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Finding the Fourth Proportional to 11,112.59, 16,659.09 and 5,558.07

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Solution

The fourth proportional to 11,112.59, 16,659.09 and 5,558.07 is: 8,332.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.59 : 16,659.09 = 5,558.07 : x
  2. Step 2: Convert to fraction form
    11,112.59/16,659.09 = 5,558.07/x
  3. Step 3: Cross multiply
    11,112.59x = 16,659.09 × 5,558.07
  4. Step 4: Simplify right side
    11,112.59x = 92,592,372.75
  5. Step 5: Solve for x
    x = 92,592,372.75/11,112.59
  6. Step 6: Final answer
    x = 8,332.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.