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Finding the Fourth Proportional to 10,008.44, 15,016.96 and 5,619.32

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Solution

The fourth proportional to 10,008.44, 15,016.96 and 5,619.32 is: 8,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.44 : 15,016.96 = 5,619.32 : x
  2. Step 2: Convert to fraction form
    10,008.44/15,016.96 = 5,619.32/x
  3. Step 3: Cross multiply
    10,008.44x = 15,016.96 × 5,619.32
  4. Step 4: Simplify right side
    10,008.44x = 84,385,103.67
  5. Step 5: Solve for x
    x = 84,385,103.67/10,008.44
  6. Step 6: Final answer
    x = 8,431.39

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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.