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Finding the Fourth Proportional to 5,022.70, 7,532.70 and 2,100.40

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Solution

The fourth proportional to 5,022.70, 7,532.70 and 2,100.40 is: 3,150.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,022.70 : 7,532.70 = 2,100.40 : x
  2. Step 2: Convert to fraction form
    5,022.70/7,532.70 = 2,100.40/x
  3. Step 3: Cross multiply
    5,022.70x = 7,532.70 × 2,100.40
  4. Step 4: Simplify right side
    5,022.70x = 15,821,683.08
  5. Step 5: Solve for x
    x = 15,821,683.08/5,022.70
  6. Step 6: Final answer
    x = 3,150.04

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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.