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Finding the Fourth Proportional to 4,928.74, 7,395.99 and 4,889.14

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Solution

The fourth proportional to 4,928.74, 7,395.99 and 4,889.14 is: 7,336.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.74 : 7,395.99 = 4,889.14 : x
  2. Step 2: Convert to fraction form
    4,928.74/7,395.99 = 4,889.14/x
  3. Step 3: Cross multiply
    4,928.74x = 7,395.99 × 4,889.14
  4. Step 4: Simplify right side
    4,928.74x = 36,160,030.55
  5. Step 5: Solve for x
    x = 36,160,030.55/4,928.74
  6. Step 6: Final answer
    x = 7,336.57

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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.