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Finding the Fourth Proportional to 3,812.22, 5,718.21 and 1,730.70

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Solution

The fourth proportional to 3,812.22, 5,718.21 and 1,730.70 is: 2,596.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.22 : 5,718.21 = 1,730.70 : x
  2. Step 2: Convert to fraction form
    3,812.22/5,718.21 = 1,730.70/x
  3. Step 3: Cross multiply
    3,812.22x = 5,718.21 × 1,730.70
  4. Step 4: Simplify right side
    3,812.22x = 9,896,506.05
  5. Step 5: Solve for x
    x = 9,896,506.05/3,812.22
  6. Step 6: Final answer
    x = 2,596.00

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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.