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Finding the Fourth Proportional to 3,448.85, 5,173.46 and 983.48

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Solution

The fourth proportional to 3,448.85, 5,173.46 and 983.48 is: 1,475.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.85 : 5,173.46 = 983.48 : x
  2. Step 2: Convert to fraction form
    3,448.85/5,173.46 = 983.48/x
  3. Step 3: Cross multiply
    3,448.85x = 5,173.46 × 983.48
  4. Step 4: Simplify right side
    3,448.85x = 5,087,972.88
  5. Step 5: Solve for x
    x = 5,087,972.88/3,448.85
  6. Step 6: Final answer
    x = 1,475.27

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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.