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Finding the Fourth Proportional to 14,474.87, 19,973.92 and 8,101.12

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Solution

The fourth proportional to 14,474.87, 19,973.92 and 8,101.12 is: 11,178.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,474.87 : 19,973.92 = 8,101.12 : x
  2. Step 2: Convert to fraction form
    14,474.87/19,973.92 = 8,101.12/x
  3. Step 3: Cross multiply
    14,474.87x = 19,973.92 × 8,101.12
  4. Step 4: Simplify right side
    14,474.87x = 161,811,122.79
  5. Step 5: Solve for x
    x = 161,811,122.79/14,474.87
  6. Step 6: Final answer
    x = 11,178.76

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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.