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Finding the Fourth Proportional to 11,967.36, 17,953.92 and 5,726.88

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Solution

The fourth proportional to 11,967.36, 17,953.92 and 5,726.88 is: 8,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,967.36 : 17,953.92 = 5,726.88 : x
  2. Step 2: Convert to fraction form
    11,967.36/17,953.92 = 5,726.88/x
  3. Step 3: Cross multiply
    11,967.36x = 17,953.92 × 5,726.88
  4. Step 4: Simplify right side
    11,967.36x = 102,819,945.37
  5. Step 5: Solve for x
    x = 102,819,945.37/11,967.36
  6. Step 6: Final answer
    x = 8,591.70

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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.