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Finding the Fourth Proportional to 1,949.96, 2,923.98 and 716.48

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Solution

The fourth proportional to 1,949.96, 2,923.98 and 716.48 is: 1,074.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.96 : 2,923.98 = 716.48 : x
  2. Step 2: Convert to fraction form
    1,949.96/2,923.98 = 716.48/x
  3. Step 3: Cross multiply
    1,949.96x = 2,923.98 × 716.48
  4. Step 4: Simplify right side
    1,949.96x = 2,094,973.19
  5. Step 5: Solve for x
    x = 2,094,973.19/1,949.96
  6. Step 6: Final answer
    x = 1,074.37

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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.