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Finding the Fourth Proportional to 11,003.52, 15,192 and 7,279.68

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Solution

The fourth proportional to 11,003.52, 15,192 and 7,279.68 is: 10,050.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.52 : 15,192 = 7,279.68 : x
  2. Step 2: Convert to fraction form
    11,003.52/15,192 = 7,279.68/x
  3. Step 3: Cross multiply
    11,003.52x = 15,192 × 7,279.68
  4. Step 4: Simplify right side
    11,003.52x = 110,592,898.56
  5. Step 5: Solve for x
    x = 110,592,898.56/11,003.52
  6. Step 6: Final answer
    x = 10,050.68

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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.