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Finding the Fourth Proportional to 5,792.16, 7,993.16 and 3,139.58

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Solution

The fourth proportional to 5,792.16, 7,993.16 and 3,139.58 is: 4,332.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,792.16 : 7,993.16 = 3,139.58 : x
  2. Step 2: Convert to fraction form
    5,792.16/7,993.16 = 3,139.58/x
  3. Step 3: Cross multiply
    5,792.16x = 7,993.16 × 3,139.58
  4. Step 4: Simplify right side
    5,792.16x = 25,095,136.37
  5. Step 5: Solve for x
    x = 25,095,136.37/5,792.16
  6. Step 6: Final answer
    x = 4,332.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.