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Finding the Fourth Proportional to 17,687.94, 24,408.96 and 9,729.99

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Solution

The fourth proportional to 17,687.94, 24,408.96 and 9,729.99 is: 13,427.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,687.94 : 24,408.96 = 9,729.99 : x
  2. Step 2: Convert to fraction form
    17,687.94/24,408.96 = 9,729.99/x
  3. Step 3: Cross multiply
    17,687.94x = 24,408.96 × 9,729.99
  4. Step 4: Simplify right side
    17,687.94x = 237,498,936.71
  5. Step 5: Solve for x
    x = 237,498,936.71/17,687.94
  6. Step 6: Final answer
    x = 13,427.17

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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.