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Finding the Fourth Proportional to 18,866.76, 26,035.02 and 10,908.42

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Solution

The fourth proportional to 18,866.76, 26,035.02 and 10,908.42 is: 15,052.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.76 : 26,035.02 = 10,908.42 : x
  2. Step 2: Convert to fraction form
    18,866.76/26,035.02 = 10,908.42/x
  3. Step 3: Cross multiply
    18,866.76x = 26,035.02 × 10,908.42
  4. Step 4: Simplify right side
    18,866.76x = 284,000,932.87
  5. Step 5: Solve for x
    x = 284,000,932.87/18,866.76
  6. Step 6: Final answer
    x = 15,052.98

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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.