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Finding the Fourth Proportional to 10,998.44, 15,178.44 and 6,283.64

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Solution

The fourth proportional to 10,998.44, 15,178.44 and 6,283.64 is: 8,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.44 : 15,178.44 = 6,283.64 : x
  2. Step 2: Convert to fraction form
    10,998.44/15,178.44 = 6,283.64/x
  3. Step 3: Cross multiply
    10,998.44x = 15,178.44 × 6,283.64
  4. Step 4: Simplify right side
    10,998.44x = 95,375,852.72
  5. Step 5: Solve for x
    x = 95,375,852.72/10,998.44
  6. Step 6: Final answer
    x = 8,671.76

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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.