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Finding the Fourth Proportional to 14,490.92, 19,996.92 and 8,203.29

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Solution

The fourth proportional to 14,490.92, 19,996.92 and 8,203.29 is: 11,320.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.92 : 19,996.92 = 8,203.29 : x
  2. Step 2: Convert to fraction form
    14,490.92/19,996.92 = 8,203.29/x
  3. Step 3: Cross multiply
    14,490.92x = 19,996.92 × 8,203.29
  4. Step 4: Simplify right side
    14,490.92x = 164,040,533.87
  5. Step 5: Solve for x
    x = 164,040,533.87/14,490.92
  6. Step 6: Final answer
    x = 11,320.23

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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.