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Finding the Fourth Proportional to 2,457.33, 3,683.84 and 917.25

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Solution

The fourth proportional to 2,457.33, 3,683.84 and 917.25 is: 1,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.33 : 3,683.84 = 917.25 : x
  2. Step 2: Convert to fraction form
    2,457.33/3,683.84 = 917.25/x
  3. Step 3: Cross multiply
    2,457.33x = 3,683.84 × 917.25
  4. Step 4: Simplify right side
    2,457.33x = 3,378,997.65
  5. Step 5: Solve for x
    x = 3,378,997.65/2,457.33
  6. Step 6: Final answer
    x = 1,375.07

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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.