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Finding the Fourth Proportional to 2,056.53, 3,083.99 and 669.53

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Solution

The fourth proportional to 2,056.53, 3,083.99 and 669.53 is: 1,004.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,056.53 : 3,083.99 = 669.53 : x
  2. Step 2: Convert to fraction form
    2,056.53/3,083.99 = 669.53/x
  3. Step 3: Cross multiply
    2,056.53x = 3,083.99 × 669.53
  4. Step 4: Simplify right side
    2,056.53x = 2,064,805.06
  5. Step 5: Solve for x
    x = 2,064,805.06/2,056.53
  6. Step 6: Final answer
    x = 1,004.03

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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.