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Finding the Fourth Proportional to 7,882.66, 11,814.54 and 3,495.16

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Solution

The fourth proportional to 7,882.66, 11,814.54 and 3,495.16 is: 5,238.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.66 : 11,814.54 = 3,495.16 : x
  2. Step 2: Convert to fraction form
    7,882.66/11,814.54 = 3,495.16/x
  3. Step 3: Cross multiply
    7,882.66x = 11,814.54 × 3,495.16
  4. Step 4: Simplify right side
    7,882.66x = 41,293,707.63
  5. Step 5: Solve for x
    x = 41,293,707.63/7,882.66
  6. Step 6: Final answer
    x = 5,238.55

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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.