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Finding the Fourth Proportional to 3,995.51, 5,964.56 and 3,172.65

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Solution

The fourth proportional to 3,995.51, 5,964.56 and 3,172.65 is: 4,736.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.51 : 5,964.56 = 3,172.65 : x
  2. Step 2: Convert to fraction form
    3,995.51/5,964.56 = 3,172.65/x
  3. Step 3: Cross multiply
    3,995.51x = 5,964.56 × 3,172.65
  4. Step 4: Simplify right side
    3,995.51x = 18,923,445.42
  5. Step 5: Solve for x
    x = 18,923,445.42/3,995.51
  6. Step 6: Final answer
    x = 4,736.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.