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Finding the Fourth Proportional to 7,415.86, 11,124.38 and 2,485.52

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Solution

The fourth proportional to 7,415.86, 11,124.38 and 2,485.52 is: 3,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.86 : 11,124.38 = 2,485.52 : x
  2. Step 2: Convert to fraction form
    7,415.86/11,124.38 = 2,485.52/x
  3. Step 3: Cross multiply
    7,415.86x = 11,124.38 × 2,485.52
  4. Step 4: Simplify right side
    7,415.86x = 27,649,868.98
  5. Step 5: Solve for x
    x = 27,649,868.98/7,415.86
  6. Step 6: Final answer
    x = 3,728.48

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.