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Finding the Fourth Proportional to 16,644.93, 22,938.44 and 11,921.01

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Solution

The fourth proportional to 16,644.93, 22,938.44 and 11,921.01 is: 16,428.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,644.93 : 22,938.44 = 11,921.01 : x
  2. Step 2: Convert to fraction form
    16,644.93/22,938.44 = 11,921.01/x
  3. Step 3: Cross multiply
    16,644.93x = 22,938.44 × 11,921.01
  4. Step 4: Simplify right side
    16,644.93x = 273,449,313.02
  5. Step 5: Solve for x
    x = 273,449,313.02/16,644.93
  6. Step 6: Final answer
    x = 16,428.38

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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.