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Finding the Fourth Proportional to 14,396.44, 19,860.29 and 8,424.44

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Solution

The fourth proportional to 14,396.44, 19,860.29 and 8,424.44 is: 11,621.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,396.44 : 19,860.29 = 8,424.44 : x
  2. Step 2: Convert to fraction form
    14,396.44/19,860.29 = 8,424.44/x
  3. Step 3: Cross multiply
    14,396.44x = 19,860.29 × 8,424.44
  4. Step 4: Simplify right side
    14,396.44x = 167,311,842.55
  5. Step 5: Solve for x
    x = 167,311,842.55/14,396.44
  6. Step 6: Final answer
    x = 11,621.76

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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.