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Finding the Fourth Proportional to 11,928.98, 17,893.01 and 4,907.05

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Solution

The fourth proportional to 11,928.98, 17,893.01 and 4,907.05 is: 7,360.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.98 : 17,893.01 = 4,907.05 : x
  2. Step 2: Convert to fraction form
    11,928.98/17,893.01 = 4,907.05/x
  3. Step 3: Cross multiply
    11,928.98x = 17,893.01 × 4,907.05
  4. Step 4: Simplify right side
    11,928.98x = 87,801,862.26
  5. Step 5: Solve for x
    x = 87,801,862.26/11,928.98
  6. Step 6: Final answer
    x = 7,360.38

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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.