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Finding the Fourth Proportional to 18,298.70, 27,443.94 and 10,905.26

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Solution

The fourth proportional to 18,298.70, 27,443.94 and 10,905.26 is: 16,355.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.70 : 27,443.94 = 10,905.26 : x
  2. Step 2: Convert to fraction form
    18,298.70/27,443.94 = 10,905.26/x
  3. Step 3: Cross multiply
    18,298.70x = 27,443.94 × 10,905.26
  4. Step 4: Simplify right side
    18,298.70x = 299,283,301.12
  5. Step 5: Solve for x
    x = 299,283,301.12/18,298.70
  6. Step 6: Final answer
    x = 16,355.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.