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Finding the Fourth Proportional to 22,390.64, 33,561.33 and 9,235.82

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Solution

The fourth proportional to 22,390.64, 33,561.33 and 9,235.82 is: 13,843.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,390.64 : 33,561.33 = 9,235.82 : x
  2. Step 2: Convert to fraction form
    22,390.64/33,561.33 = 9,235.82/x
  3. Step 3: Cross multiply
    22,390.64x = 33,561.33 × 9,235.82
  4. Step 4: Simplify right side
    22,390.64x = 309,966,402.84
  5. Step 5: Solve for x
    x = 309,966,402.84/22,390.64
  6. Step 6: Final answer
    x = 13,843.57

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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.