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Finding the Fourth Proportional to 14,392.94, 19,861.71 and 8,019.38

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Solution

The fourth proportional to 14,392.94, 19,861.71 and 8,019.38 is: 11,066.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,392.94 : 19,861.71 = 8,019.38 : x
  2. Step 2: Convert to fraction form
    14,392.94/19,861.71 = 8,019.38/x
  3. Step 3: Cross multiply
    14,392.94x = 19,861.71 × 8,019.38
  4. Step 4: Simplify right side
    14,392.94x = 159,278,500.63
  5. Step 5: Solve for x
    x = 159,278,500.63/14,392.94
  6. Step 6: Final answer
    x = 11,066.44

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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.