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Finding the Fourth Proportional to 1,034.84, 1,551 and 792.38

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Solution

The fourth proportional to 1,034.84, 1,551 and 792.38 is: 1,187.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.84 : 1,551 = 792.38 : x
  2. Step 2: Convert to fraction form
    1,034.84/1,551 = 792.38/x
  3. Step 3: Cross multiply
    1,034.84x = 1,551 × 792.38
  4. Step 4: Simplify right side
    1,034.84x = 1,228,981.38
  5. Step 5: Solve for x
    x = 1,228,981.38/1,034.84
  6. Step 6: Final answer
    x = 1,187.61

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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.