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Finding the Fourth Proportional to 1,956.53, 2,700.07 and 1,072.37

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Solution

The fourth proportional to 1,956.53, 2,700.07 and 1,072.37 is: 1,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.53 : 2,700.07 = 1,072.37 : x
  2. Step 2: Convert to fraction form
    1,956.53/2,700.07 = 1,072.37/x
  3. Step 3: Cross multiply
    1,956.53x = 2,700.07 × 1,072.37
  4. Step 4: Simplify right side
    1,956.53x = 2,895,478.14
  5. Step 5: Solve for x
    x = 2,895,478.14/1,956.53
  6. Step 6: Final answer
    x = 1,479.90

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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.