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Finding the Fourth Proportional to 8,457.54, 11,671.73 and 4,629.44

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Solution

The fourth proportional to 8,457.54, 11,671.73 and 4,629.44 is: 6,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.54 : 11,671.73 = 4,629.44 : x
  2. Step 2: Convert to fraction form
    8,457.54/11,671.73 = 4,629.44/x
  3. Step 3: Cross multiply
    8,457.54x = 11,671.73 × 4,629.44
  4. Step 4: Simplify right side
    8,457.54x = 54,033,573.73
  5. Step 5: Solve for x
    x = 54,033,573.73/8,457.54
  6. Step 6: Final answer
    x = 6,388.80

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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.