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Finding the Fourth Proportional to 5,608.57, 7,739.50 and 3,090.67

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Solution

The fourth proportional to 5,608.57, 7,739.50 and 3,090.67 is: 4,264.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.57 : 7,739.50 = 3,090.67 : x
  2. Step 2: Convert to fraction form
    5,608.57/7,739.50 = 3,090.67/x
  3. Step 3: Cross multiply
    5,608.57x = 7,739.50 × 3,090.67
  4. Step 4: Simplify right side
    5,608.57x = 23,920,240.47
  5. Step 5: Solve for x
    x = 23,920,240.47/5,608.57
  6. Step 6: Final answer
    x = 4,264.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.