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Finding the Fourth Proportional to 21,376.44, 32,036.72 and 11,494.44

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Solution

The fourth proportional to 21,376.44, 32,036.72 and 11,494.44 is: 17,226.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.44 : 32,036.72 = 11,494.44 : x
  2. Step 2: Convert to fraction form
    21,376.44/32,036.72 = 11,494.44/x
  3. Step 3: Cross multiply
    21,376.44x = 32,036.72 × 11,494.44
  4. Step 4: Simplify right side
    21,376.44x = 368,244,155.84
  5. Step 5: Solve for x
    x = 368,244,155.84/21,376.44
  6. Step 6: Final answer
    x = 17,226.64

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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.