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Finding the Fourth Proportional to 3,432.99, 4,737.42 and 1,940.82

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Solution

The fourth proportional to 3,432.99, 4,737.42 and 1,940.82 is: 2,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.99 : 4,737.42 = 1,940.82 : x
  2. Step 2: Convert to fraction form
    3,432.99/4,737.42 = 1,940.82/x
  3. Step 3: Cross multiply
    3,432.99x = 4,737.42 × 1,940.82
  4. Step 4: Simplify right side
    3,432.99x = 9,194,479.48
  5. Step 5: Solve for x
    x = 9,194,479.48/3,432.99
  6. Step 6: Final answer
    x = 2,678.27

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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.