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Finding the Fourth Proportional to 7,239.96, 10,865.43 and 4,773.96

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Solution

The fourth proportional to 7,239.96, 10,865.43 and 4,773.96 is: 7,164.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.96 : 10,865.43 = 4,773.96 : x
  2. Step 2: Convert to fraction form
    7,239.96/10,865.43 = 4,773.96/x
  3. Step 3: Cross multiply
    7,239.96x = 10,865.43 × 4,773.96
  4. Step 4: Simplify right side
    7,239.96x = 51,871,128.20
  5. Step 5: Solve for x
    x = 51,871,128.20/7,239.96
  6. Step 6: Final answer
    x = 7,164.56

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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.