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Finding the Fourth Proportional to 4,940.86, 7,412.49 and 3,482.86

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Solution

The fourth proportional to 4,940.86, 7,412.49 and 3,482.86 is: 5,225.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.86 : 7,412.49 = 3,482.86 : x
  2. Step 2: Convert to fraction form
    4,940.86/7,412.49 = 3,482.86/x
  3. Step 3: Cross multiply
    4,940.86x = 7,412.49 × 3,482.86
  4. Step 4: Simplify right side
    4,940.86x = 25,816,664.92
  5. Step 5: Solve for x
    x = 25,816,664.92/4,940.86
  6. Step 6: Final answer
    x = 5,225.14

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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.