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Finding the Fourth Proportional to 5,673.80, 8,510.70 and 5,198.60

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Solution

The fourth proportional to 5,673.80, 8,510.70 and 5,198.60 is: 7,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,673.80 : 8,510.70 = 5,198.60 : x
  2. Step 2: Convert to fraction form
    5,673.80/8,510.70 = 5,198.60/x
  3. Step 3: Cross multiply
    5,673.80x = 8,510.70 × 5,198.60
  4. Step 4: Simplify right side
    5,673.80x = 44,243,725.02
  5. Step 5: Solve for x
    x = 44,243,725.02/5,673.80
  6. Step 6: Final answer
    x = 7,797.90

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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.