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Finding the Fourth Proportional to 14,473.87, 19,972.54 and 8,100.12

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Solution

The fourth proportional to 14,473.87, 19,972.54 and 8,100.12 is: 11,177.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,473.87 : 19,972.54 = 8,100.12 : x
  2. Step 2: Convert to fraction form
    14,473.87/19,972.54 = 8,100.12/x
  3. Step 3: Cross multiply
    14,473.87x = 19,972.54 × 8,100.12
  4. Step 4: Simplify right side
    14,473.87x = 161,780,055.73
  5. Step 5: Solve for x
    x = 161,780,055.73/14,473.87
  6. Step 6: Final answer
    x = 11,177.39

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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.