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Finding the Fourth Proportional to 7,893.65, 11,840.01 and 2,962.88

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Solution

The fourth proportional to 7,893.65, 11,840.01 and 2,962.88 is: 4,444.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.65 : 11,840.01 = 2,962.88 : x
  2. Step 2: Convert to fraction form
    7,893.65/11,840.01 = 2,962.88/x
  3. Step 3: Cross multiply
    7,893.65x = 11,840.01 × 2,962.88
  4. Step 4: Simplify right side
    7,893.65x = 35,080,469.63
  5. Step 5: Solve for x
    x = 35,080,469.63/7,893.65
  6. Step 6: Final answer
    x = 4,444.14

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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.