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Finding the Fourth Proportional to 5,683.70, 8,505.27 and 3,929.06

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Solution

The fourth proportional to 5,683.70, 8,505.27 and 3,929.06 is: 5,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,683.70 : 8,505.27 = 3,929.06 : x
  2. Step 2: Convert to fraction form
    5,683.70/8,505.27 = 3,929.06/x
  3. Step 3: Cross multiply
    5,683.70x = 8,505.27 × 3,929.06
  4. Step 4: Simplify right side
    5,683.70x = 33,417,716.15
  5. Step 5: Solve for x
    x = 33,417,716.15/5,683.70
  6. Step 6: Final answer
    x = 5,879.57

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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.