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Finding the Fourth Proportional to 18,896.61, 26,082.05 and 10,943.67

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Solution

The fourth proportional to 18,896.61, 26,082.05 and 10,943.67 is: 15,105.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.61 : 26,082.05 = 10,943.67 : x
  2. Step 2: Convert to fraction form
    18,896.61/26,082.05 = 10,943.67/x
  3. Step 3: Cross multiply
    18,896.61x = 26,082.05 × 10,943.67
  4. Step 4: Simplify right side
    18,896.61x = 285,433,293.41
  5. Step 5: Solve for x
    x = 285,433,293.41/18,896.61
  6. Step 6: Final answer
    x = 15,105.00

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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.