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Finding the Fourth Proportional to 6,913, 9,539.62 and 3,769.16

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Solution

The fourth proportional to 6,913, 9,539.62 and 3,769.16 is: 5,201.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913 : 9,539.62 = 3,769.16 : x
  2. Step 2: Convert to fraction form
    6,913/9,539.62 = 3,769.16/x
  3. Step 3: Cross multiply
    6,913x = 9,539.62 × 3,769.16
  4. Step 4: Simplify right side
    6,913x = 35,956,354.12
  5. Step 5: Solve for x
    x = 35,956,354.12/6,913
  6. Step 6: Final answer
    x = 5,201.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.