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Finding the Fourth Proportional to 1,596.14, 2,392.47 and 672.20

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Solution

The fourth proportional to 1,596.14, 2,392.47 and 672.20 is: 1,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,596.14 : 2,392.47 = 672.20 : x
  2. Step 2: Convert to fraction form
    1,596.14/2,392.47 = 672.20/x
  3. Step 3: Cross multiply
    1,596.14x = 2,392.47 × 672.20
  4. Step 4: Simplify right side
    1,596.14x = 1,608,206.37
  5. Step 5: Solve for x
    x = 1,608,206.37/1,596.14
  6. Step 6: Final answer
    x = 1,007.56

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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.