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Finding the Fourth Proportional to 18,459.39, 27,671.81 and 10,234.11

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Solution

The fourth proportional to 18,459.39, 27,671.81 and 10,234.11 is: 15,341.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,459.39 : 27,671.81 = 10,234.11 : x
  2. Step 2: Convert to fraction form
    18,459.39/27,671.81 = 10,234.11/x
  3. Step 3: Cross multiply
    18,459.39x = 27,671.81 × 10,234.11
  4. Step 4: Simplify right side
    18,459.39x = 283,196,296.27
  5. Step 5: Solve for x
    x = 283,196,296.27/18,459.39
  6. Step 6: Final answer
    x = 15,341.58

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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.