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Finding the Fourth Proportional to 3,292.57, 4,940.19 and 1,442.71

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Solution

The fourth proportional to 3,292.57, 4,940.19 and 1,442.71 is: 2,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,292.57 : 4,940.19 = 1,442.71 : x
  2. Step 2: Convert to fraction form
    3,292.57/4,940.19 = 1,442.71/x
  3. Step 3: Cross multiply
    3,292.57x = 4,940.19 × 1,442.71
  4. Step 4: Simplify right side
    3,292.57x = 7,127,261.51
  5. Step 5: Solve for x
    x = 7,127,261.51/3,292.57
  6. Step 6: Final answer
    x = 2,164.65

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1.5x scale

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.