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Finding the Fourth Proportional to 22,394.79, 30,894.47 and 14,439.57

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Solution

The fourth proportional to 22,394.79, 30,894.47 and 14,439.57 is: 19,919.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,394.79 : 30,894.47 = 14,439.57 : x
  2. Step 2: Convert to fraction form
    22,394.79/30,894.47 = 14,439.57/x
  3. Step 3: Cross multiply
    22,394.79x = 30,894.47 × 14,439.57
  4. Step 4: Simplify right side
    22,394.79x = 446,102,789.98
  5. Step 5: Solve for x
    x = 446,102,789.98/22,394.79
  6. Step 6: Final answer
    x = 19,919.94

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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.