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Finding the Fourth Proportional to 11,398.29, 17,078.28 and 8,094.99

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Solution

The fourth proportional to 11,398.29, 17,078.28 and 8,094.99 is: 12,128.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,398.29 : 17,078.28 = 8,094.99 : x
  2. Step 2: Convert to fraction form
    11,398.29/17,078.28 = 8,094.99/x
  3. Step 3: Cross multiply
    11,398.29x = 17,078.28 × 8,094.99
  4. Step 4: Simplify right side
    11,398.29x = 138,248,505.82
  5. Step 5: Solve for x
    x = 138,248,505.82/11,398.29
  6. Step 6: Final answer
    x = 12,128.88

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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.