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Finding the Fourth Proportional to 5,762.89, 8,630.48 and 3,290.22

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Solution

The fourth proportional to 5,762.89, 8,630.48 and 3,290.22 is: 4,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,762.89 : 8,630.48 = 3,290.22 : x
  2. Step 2: Convert to fraction form
    5,762.89/8,630.48 = 3,290.22/x
  3. Step 3: Cross multiply
    5,762.89x = 8,630.48 × 3,290.22
  4. Step 4: Simplify right side
    5,762.89x = 28,396,141.43
  5. Step 5: Solve for x
    x = 28,396,141.43/5,762.89
  6. Step 6: Final answer
    x = 4,927.41

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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.