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Finding the Fourth Proportional to 1,944.15, 2,913.93 and 968.24

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Solution

The fourth proportional to 1,944.15, 2,913.93 and 968.24 is: 1,451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.15 : 2,913.93 = 968.24 : x
  2. Step 2: Convert to fraction form
    1,944.15/2,913.93 = 968.24/x
  3. Step 3: Cross multiply
    1,944.15x = 2,913.93 × 968.24
  4. Step 4: Simplify right side
    1,944.15x = 2,821,369.01
  5. Step 5: Solve for x
    x = 2,821,369.01/1,944.15
  6. Step 6: Final answer
    x = 1,451.21

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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.