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Finding the Fourth Proportional to 16,662.94, 22,986.21 and 11,285.53

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Solution

The fourth proportional to 16,662.94, 22,986.21 and 11,285.53 is: 15,568.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,662.94 : 22,986.21 = 11,285.53 : x
  2. Step 2: Convert to fraction form
    16,662.94/22,986.21 = 11,285.53/x
  3. Step 3: Cross multiply
    16,662.94x = 22,986.21 × 11,285.53
  4. Step 4: Simplify right side
    16,662.94x = 259,411,562.54
  5. Step 5: Solve for x
    x = 259,411,562.54/16,662.94
  6. Step 6: Final answer
    x = 15,568.17

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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.