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Finding the Fourth Proportional to 2,937.84, 4,406.81 and 746.58

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Solution

The fourth proportional to 2,937.84, 4,406.81 and 746.58 is: 1,119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,937.84 : 4,406.81 = 746.58 : x
  2. Step 2: Convert to fraction form
    2,937.84/4,406.81 = 746.58/x
  3. Step 3: Cross multiply
    2,937.84x = 4,406.81 × 746.58
  4. Step 4: Simplify right side
    2,937.84x = 3,290,049.00
  5. Step 5: Solve for x
    x = 3,290,049.00/2,937.84
  6. Step 6: Final answer
    x = 1,119.89

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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.