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Finding the Fourth Proportional to 7,952.76, 11,927.32 and 3,571.47

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Solution

The fourth proportional to 7,952.76, 11,927.32 and 3,571.47 is: 5,356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.76 : 11,927.32 = 3,571.47 : x
  2. Step 2: Convert to fraction form
    7,952.76/11,927.32 = 3,571.47/x
  3. Step 3: Cross multiply
    7,952.76x = 11,927.32 × 3,571.47
  4. Step 4: Simplify right side
    7,952.76x = 42,598,065.56
  5. Step 5: Solve for x
    x = 42,598,065.56/7,952.76
  6. Step 6: Final answer
    x = 5,356.39

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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.