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Finding the Fourth Proportional to 14,168.40, 19,553.04 and 8,201.52

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Solution

The fourth proportional to 14,168.40, 19,553.04 and 8,201.52 is: 11,318.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.40 : 19,553.04 = 8,201.52 : x
  2. Step 2: Convert to fraction form
    14,168.40/19,553.04 = 8,201.52/x
  3. Step 3: Cross multiply
    14,168.40x = 19,553.04 × 8,201.52
  4. Step 4: Simplify right side
    14,168.40x = 160,364,648.62
  5. Step 5: Solve for x
    x = 160,364,648.62/14,168.40
  6. Step 6: Final answer
    x = 11,318.47

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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.