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Finding the Fourth Proportional to 2,940.68, 4,059.06 and 1,895.56

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Solution

The fourth proportional to 2,940.68, 4,059.06 and 1,895.56 is: 2,616.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.68 : 4,059.06 = 1,895.56 : x
  2. Step 2: Convert to fraction form
    2,940.68/4,059.06 = 1,895.56/x
  3. Step 3: Cross multiply
    2,940.68x = 4,059.06 × 1,895.56
  4. Step 4: Simplify right side
    2,940.68x = 7,694,191.77
  5. Step 5: Solve for x
    x = 7,694,191.77/2,940.68
  6. Step 6: Final answer
    x = 2,616.47

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1.5x scale

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.