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Finding the Fourth Proportional to 18,155.92, 27,214.64 and 10,348

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Solution

The fourth proportional to 18,155.92, 27,214.64 and 10,348 is: 15,511.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.92 : 27,214.64 = 10,348 : x
  2. Step 2: Convert to fraction form
    18,155.92/27,214.64 = 10,348/x
  3. Step 3: Cross multiply
    18,155.92x = 27,214.64 × 10,348
  4. Step 4: Simplify right side
    18,155.92x = 281,617,094.72
  5. Step 5: Solve for x
    x = 281,617,094.72/18,155.92
  6. Step 6: Final answer
    x = 15,511.03

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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.