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Finding the Fourth Proportional to 18,305.95, 27,460.75 and 8,448.05

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Solution

The fourth proportional to 18,305.95, 27,460.75 and 8,448.05 is: 12,672.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.95 : 27,460.75 = 8,448.05 : x
  2. Step 2: Convert to fraction form
    18,305.95/27,460.75 = 8,448.05/x
  3. Step 3: Cross multiply
    18,305.95x = 27,460.75 × 8,448.05
  4. Step 4: Simplify right side
    18,305.95x = 231,989,789.04
  5. Step 5: Solve for x
    x = 231,989,789.04/18,305.95
  6. Step 6: Final answer
    x = 12,672.92

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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.