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Finding the Fourth Proportional to 19,394.92, 26,765.02 and 11,011.42

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Solution

The fourth proportional to 19,394.92, 26,765.02 and 11,011.42 is: 15,195.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,394.92 : 26,765.02 = 11,011.42 : x
  2. Step 2: Convert to fraction form
    19,394.92/26,765.02 = 11,011.42/x
  3. Step 3: Cross multiply
    19,394.92x = 26,765.02 × 11,011.42
  4. Step 4: Simplify right side
    19,394.92x = 294,720,876.53
  5. Step 5: Solve for x
    x = 294,720,876.53/19,394.92
  6. Step 6: Final answer
    x = 15,195.78

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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.