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Finding the Fourth Proportional to 1,892.85, 2,837.43 and 905.41

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Solution

The fourth proportional to 1,892.85, 2,837.43 and 905.41 is: 1,357.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892.85 : 2,837.43 = 905.41 : x
  2. Step 2: Convert to fraction form
    1,892.85/2,837.43 = 905.41/x
  3. Step 3: Cross multiply
    1,892.85x = 2,837.43 × 905.41
  4. Step 4: Simplify right side
    1,892.85x = 2,569,032.10
  5. Step 5: Solve for x
    x = 2,569,032.10/1,892.85
  6. Step 6: Final answer
    x = 1,357.23

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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.