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Finding the Fourth Proportional to 15,600.72, 23,385.72 and 6,237.96

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Solution

The fourth proportional to 15,600.72, 23,385.72 and 6,237.96 is: 9,350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.72 : 23,385.72 = 6,237.96 : x
  2. Step 2: Convert to fraction form
    15,600.72/23,385.72 = 6,237.96/x
  3. Step 3: Cross multiply
    15,600.72x = 23,385.72 × 6,237.96
  4. Step 4: Simplify right side
    15,600.72x = 145,879,185.93
  5. Step 5: Solve for x
    x = 145,879,185.93/15,600.72
  6. Step 6: Final answer
    x = 9,350.80

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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.