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Finding the Fourth Proportional to 14,249.68, 21,374.68 and 4,388.88

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Solution

The fourth proportional to 14,249.68, 21,374.68 and 4,388.88 is: 6,583.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,249.68 : 21,374.68 = 4,388.88 : x
  2. Step 2: Convert to fraction form
    14,249.68/21,374.68 = 4,388.88/x
  3. Step 3: Cross multiply
    14,249.68x = 21,374.68 × 4,388.88
  4. Step 4: Simplify right side
    14,249.68x = 93,810,905.56
  5. Step 5: Solve for x
    x = 93,810,905.56/14,249.68
  6. Step 6: Final answer
    x = 6,583.37

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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.