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Finding the Fourth Proportional to 13,398.23, 18,490.11 and 8,092.01

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Solution

The fourth proportional to 13,398.23, 18,490.11 and 8,092.01 is: 11,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.23 : 18,490.11 = 8,092.01 : x
  2. Step 2: Convert to fraction form
    13,398.23/18,490.11 = 8,092.01/x
  3. Step 3: Cross multiply
    13,398.23x = 18,490.11 × 8,092.01
  4. Step 4: Simplify right side
    13,398.23x = 149,622,155.02
  5. Step 5: Solve for x
    x = 149,622,155.02/13,398.23
  6. Step 6: Final answer
    x = 11,167.31

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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.