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Finding the Fourth Proportional to 11,578.44, 15,978.18 and 6,273.18

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Solution

The fourth proportional to 11,578.44, 15,978.18 and 6,273.18 is: 8,656.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,578.44 : 15,978.18 = 6,273.18 : x
  2. Step 2: Convert to fraction form
    11,578.44/15,978.18 = 6,273.18/x
  3. Step 3: Cross multiply
    11,578.44x = 15,978.18 × 6,273.18
  4. Step 4: Simplify right side
    11,578.44x = 100,233,999.21
  5. Step 5: Solve for x
    x = 100,233,999.21/11,578.44
  6. Step 6: Final answer
    x = 8,656.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.