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Finding the Fourth Proportional to 4,940.63, 6,781.75 and 4,368.56

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Solution

The fourth proportional to 4,940.63, 6,781.75 and 4,368.56 is: 5,996.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.63 : 6,781.75 = 4,368.56 : x
  2. Step 2: Convert to fraction form
    4,940.63/6,781.75 = 4,368.56/x
  3. Step 3: Cross multiply
    4,940.63x = 6,781.75 × 4,368.56
  4. Step 4: Simplify right side
    4,940.63x = 29,626,436.95
  5. Step 5: Solve for x
    x = 29,626,436.95/4,940.63
  6. Step 6: Final answer
    x = 5,996.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.