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Finding the Fourth Proportional to 5,768.09, 7,958.14 and 3,528.84

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Solution

The fourth proportional to 5,768.09, 7,958.14 and 3,528.84 is: 4,868.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,768.09 : 7,958.14 = 3,528.84 : x
  2. Step 2: Convert to fraction form
    5,768.09/7,958.14 = 3,528.84/x
  3. Step 3: Cross multiply
    5,768.09x = 7,958.14 × 3,528.84
  4. Step 4: Simplify right side
    5,768.09x = 28,082,996.43
  5. Step 5: Solve for x
    x = 28,082,996.43/5,768.09
  6. Step 6: Final answer
    x = 4,868.69

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1.5x scale

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.