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Finding the Fourth Proportional to 7,388.50, 10,196.13 and 4,076.50

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Solution

The fourth proportional to 7,388.50, 10,196.13 and 4,076.50 is: 5,625.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.50 : 10,196.13 = 4,076.50 : x
  2. Step 2: Convert to fraction form
    7,388.50/10,196.13 = 4,076.50/x
  3. Step 3: Cross multiply
    7,388.50x = 10,196.13 × 4,076.50
  4. Step 4: Simplify right side
    7,388.50x = 41,564,523.95
  5. Step 5: Solve for x
    x = 41,564,523.95/7,388.50
  6. Step 6: Final answer
    x = 5,625.57

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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.