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Finding the Fourth Proportional to 3,393.23, 4,639.91 and 3,393.23

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Solution

The fourth proportional to 3,393.23, 4,639.91 and 3,393.23 is: 4,639.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.23 : 4,639.91 = 3,393.23 : x
  2. Step 2: Convert to fraction form
    3,393.23/4,639.91 = 3,393.23/x
  3. Step 3: Cross multiply
    3,393.23x = 4,639.91 × 3,393.23
  4. Step 4: Simplify right side
    3,393.23x = 15,744,281.81
  5. Step 5: Solve for x
    x = 15,744,281.81/3,393.23
  6. Step 6: Final answer
    x = 4,639.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.