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Finding the Fourth Proportional to 5,749.50, 7,935.84 and 3,393.21

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Solution

The fourth proportional to 5,749.50, 7,935.84 and 3,393.21 is: 4,683.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,749.50 : 7,935.84 = 3,393.21 : x
  2. Step 2: Convert to fraction form
    5,749.50/7,935.84 = 3,393.21/x
  3. Step 3: Cross multiply
    5,749.50x = 7,935.84 × 3,393.21
  4. Step 4: Simplify right side
    5,749.50x = 26,927,954.68
  5. Step 5: Solve for x
    x = 26,927,954.68/5,749.50
  6. Step 6: Final answer
    x = 4,683.53

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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.