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Finding the Fourth Proportional to 5,475.90, 8,193.60 and 4,017.90

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Solution

The fourth proportional to 5,475.90, 8,193.60 and 4,017.90 is: 6,011.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.90 : 8,193.60 = 4,017.90 : x
  2. Step 2: Convert to fraction form
    5,475.90/8,193.60 = 4,017.90/x
  3. Step 3: Cross multiply
    5,475.90x = 8,193.60 × 4,017.90
  4. Step 4: Simplify right side
    5,475.90x = 32,921,065.44
  5. Step 5: Solve for x
    x = 32,921,065.44/5,475.90
  6. Step 6: Final answer
    x = 6,011.99

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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.