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Finding the Fourth Proportional to 1,851.84, 2,553.36 and 1,152.48

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Solution

The fourth proportional to 1,851.84, 2,553.36 and 1,152.48 is: 1,589.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.84 : 2,553.36 = 1,152.48 : x
  2. Step 2: Convert to fraction form
    1,851.84/2,553.36 = 1,152.48/x
  3. Step 3: Cross multiply
    1,851.84x = 2,553.36 × 1,152.48
  4. Step 4: Simplify right side
    1,851.84x = 2,942,696.33
  5. Step 5: Solve for x
    x = 2,942,696.33/1,851.84
  6. Step 6: Final answer
    x = 1,589.07

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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.