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Finding the Fourth Proportional to 7,374.98, 11,058.39 and 2,928.14

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Solution

The fourth proportional to 7,374.98, 11,058.39 and 2,928.14 is: 4,390.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.98 : 11,058.39 = 2,928.14 : x
  2. Step 2: Convert to fraction form
    7,374.98/11,058.39 = 2,928.14/x
  3. Step 3: Cross multiply
    7,374.98x = 11,058.39 × 2,928.14
  4. Step 4: Simplify right side
    7,374.98x = 32,380,514.09
  5. Step 5: Solve for x
    x = 32,380,514.09/7,374.98
  6. Step 6: Final answer
    x = 4,390.59

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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.