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Finding the Fourth Proportional to 1,491.62, 2,058.54 and 1,049.67

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Solution

The fourth proportional to 1,491.62, 2,058.54 and 1,049.67 is: 1,448.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.62 : 2,058.54 = 1,049.67 : x
  2. Step 2: Convert to fraction form
    1,491.62/2,058.54 = 1,049.67/x
  3. Step 3: Cross multiply
    1,491.62x = 2,058.54 × 1,049.67
  4. Step 4: Simplify right side
    1,491.62x = 2,160,787.68
  5. Step 5: Solve for x
    x = 2,160,787.68/1,491.62
  6. Step 6: Final answer
    x = 1,448.62

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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.