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Finding the Fourth Proportional to 5,721.21, 8,571.46 and 4,802.67

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Solution

The fourth proportional to 5,721.21, 8,571.46 and 4,802.67 is: 7,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.21 : 8,571.46 = 4,802.67 : x
  2. Step 2: Convert to fraction form
    5,721.21/8,571.46 = 4,802.67/x
  3. Step 3: Cross multiply
    5,721.21x = 8,571.46 × 4,802.67
  4. Step 4: Simplify right side
    5,721.21x = 41,165,903.22
  5. Step 5: Solve for x
    x = 41,165,903.22/5,721.21
  6. Step 6: Final answer
    x = 7,195.31

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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.