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Finding the Fourth Proportional to 3,448.81, 5,174.03 and 983.67

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Solution

The fourth proportional to 3,448.81, 5,174.03 and 983.67 is: 1,475.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.81 : 5,174.03 = 983.67 : x
  2. Step 2: Convert to fraction form
    3,448.81/5,174.03 = 983.67/x
  3. Step 3: Cross multiply
    3,448.81x = 5,174.03 × 983.67
  4. Step 4: Simplify right side
    3,448.81x = 5,089,507.30
  5. Step 5: Solve for x
    x = 5,089,507.30/3,448.81
  6. Step 6: Final answer
    x = 1,475.73

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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.