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Finding the Fourth Proportional to 18,796.05, 25,938.54 and 10,838.16

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Solution

The fourth proportional to 18,796.05, 25,938.54 and 10,838.16 is: 14,956.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.05 : 25,938.54 = 10,838.16 : x
  2. Step 2: Convert to fraction form
    18,796.05/25,938.54 = 10,838.16/x
  3. Step 3: Cross multiply
    18,796.05x = 25,938.54 × 10,838.16
  4. Step 4: Simplify right side
    18,796.05x = 281,126,046.69
  5. Step 5: Solve for x
    x = 281,126,046.69/18,796.05
  6. Step 6: Final answer
    x = 14,956.66

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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.