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Finding the Fourth Proportional to 14,392.54, 19,864.50 and 8,104.96

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Solution

The fourth proportional to 14,392.54, 19,864.50 and 8,104.96 is: 11,186.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,392.54 : 19,864.50 = 8,104.96 : x
  2. Step 2: Convert to fraction form
    14,392.54/19,864.50 = 8,104.96/x
  3. Step 3: Cross multiply
    14,392.54x = 19,864.50 × 8,104.96
  4. Step 4: Simplify right side
    14,392.54x = 161,000,977.92
  5. Step 5: Solve for x
    x = 161,000,977.92/14,392.54
  6. Step 6: Final answer
    x = 11,186.42

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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.