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Finding the Fourth Proportional to 18,855.84, 26,018.17 and 10,896.53

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Solution

The fourth proportional to 18,855.84, 26,018.17 and 10,896.53 is: 15,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.84 : 26,018.17 = 10,896.53 : x
  2. Step 2: Convert to fraction form
    18,855.84/26,018.17 = 10,896.53/x
  3. Step 3: Cross multiply
    18,855.84x = 26,018.17 × 10,896.53
  4. Step 4: Simplify right side
    18,855.84x = 283,507,769.95
  5. Step 5: Solve for x
    x = 283,507,769.95/18,855.84
  6. Step 6: Final answer
    x = 15,035.54

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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.