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Finding the Fourth Proportional to 11,381.52, 17,072.24 and 7,108.48

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Solution

The fourth proportional to 11,381.52, 17,072.24 and 7,108.48 is: 10,662.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.52 : 17,072.24 = 7,108.48 : x
  2. Step 2: Convert to fraction form
    11,381.52/17,072.24 = 7,108.48/x
  3. Step 3: Cross multiply
    11,381.52x = 17,072.24 × 7,108.48
  4. Step 4: Simplify right side
    11,381.52x = 121,357,676.60
  5. Step 5: Solve for x
    x = 121,357,676.60/11,381.52
  6. Step 6: Final answer
    x = 10,662.70

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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.