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Finding the Fourth Proportional to 5,722.20, 8,583.30 and 4,750.20

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Solution

The fourth proportional to 5,722.20, 8,583.30 and 4,750.20 is: 7,125.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,722.20 : 8,583.30 = 4,750.20 : x
  2. Step 2: Convert to fraction form
    5,722.20/8,583.30 = 4,750.20/x
  3. Step 3: Cross multiply
    5,722.20x = 8,583.30 × 4,750.20
  4. Step 4: Simplify right side
    5,722.20x = 40,772,391.66
  5. Step 5: Solve for x
    x = 40,772,391.66/5,722.20
  6. Step 6: Final answer
    x = 7,125.30

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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.