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Finding the Fourth Proportional to 2,963.02, 4,444.26 and 911.02

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Solution

The fourth proportional to 2,963.02, 4,444.26 and 911.02 is: 1,366.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.02 : 4,444.26 = 911.02 : x
  2. Step 2: Convert to fraction form
    2,963.02/4,444.26 = 911.02/x
  3. Step 3: Cross multiply
    2,963.02x = 4,444.26 × 911.02
  4. Step 4: Simplify right side
    2,963.02x = 4,048,809.75
  5. Step 5: Solve for x
    x = 4,048,809.75/2,963.02
  6. Step 6: Final answer
    x = 1,366.45

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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.