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Finding the Fourth Proportional to 7,335.15, 11,005.97 and 2,961.15

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Solution

The fourth proportional to 7,335.15, 11,005.97 and 2,961.15 is: 4,443.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,335.15 : 11,005.97 = 2,961.15 : x
  2. Step 2: Convert to fraction form
    7,335.15/11,005.97 = 2,961.15/x
  3. Step 3: Cross multiply
    7,335.15x = 11,005.97 × 2,961.15
  4. Step 4: Simplify right side
    7,335.15x = 32,590,313.26
  5. Step 5: Solve for x
    x = 32,590,313.26/7,335.15
  6. Step 6: Final answer
    x = 4,443.03

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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.