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Finding the Fourth Proportional to 8,362.56, 11,548.15 and 5,383.58

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Solution

The fourth proportional to 8,362.56, 11,548.15 and 5,383.58 is: 7,434.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,362.56 : 11,548.15 = 5,383.58 : x
  2. Step 2: Convert to fraction form
    8,362.56/11,548.15 = 5,383.58/x
  3. Step 3: Cross multiply
    8,362.56x = 11,548.15 × 5,383.58
  4. Step 4: Simplify right side
    8,362.56x = 62,170,318.18
  5. Step 5: Solve for x
    x = 62,170,318.18/8,362.56
  6. Step 6: Final answer
    x = 7,434.36

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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.