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Finding the Fourth Proportional to 8,453.74, 12,683.62 and 3,773.32

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Solution

The fourth proportional to 8,453.74, 12,683.62 and 3,773.32 is: 5,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.74 : 12,683.62 = 3,773.32 : x
  2. Step 2: Convert to fraction form
    8,453.74/12,683.62 = 3,773.32/x
  3. Step 3: Cross multiply
    8,453.74x = 12,683.62 × 3,773.32
  4. Step 4: Simplify right side
    8,453.74x = 47,859,357.02
  5. Step 5: Solve for x
    x = 47,859,357.02/8,453.74
  6. Step 6: Final answer
    x = 5,661.32

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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.