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Finding the Fourth Proportional to 18,095.00, 27,139.46 and 4,945.05

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Solution

The fourth proportional to 18,095.00, 27,139.46 and 4,945.05 is: 7,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,095.00 : 27,139.46 = 4,945.05 : x
  2. Step 2: Convert to fraction form
    18,095.00/27,139.46 = 4,945.05/x
  3. Step 3: Cross multiply
    18,095.00x = 27,139.46 × 4,945.05
  4. Step 4: Simplify right side
    18,095.00x = 134,205,961.95
  5. Step 5: Solve for x
    x = 134,205,961.95/18,095.00
  6. Step 6: Final answer
    x = 7,416.74

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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.