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Finding the Fourth Proportional to 19,846.42, 27,388.42 and 10,894.76

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Solution

The fourth proportional to 19,846.42, 27,388.42 and 10,894.76 is: 15,034.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,846.42 : 27,388.42 = 10,894.76 : x
  2. Step 2: Convert to fraction form
    19,846.42/27,388.42 = 10,894.76/x
  3. Step 3: Cross multiply
    19,846.42x = 27,388.42 × 10,894.76
  4. Step 4: Simplify right side
    19,846.42x = 298,390,262.68
  5. Step 5: Solve for x
    x = 298,390,262.68/19,846.42
  6. Step 6: Final answer
    x = 15,034.97

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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.