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Finding the Fourth Proportional to 1,973.06, 2,960.10 and 674.54

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Solution

The fourth proportional to 1,973.06, 2,960.10 and 674.54 is: 1,011.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.06 : 2,960.10 = 674.54 : x
  2. Step 2: Convert to fraction form
    1,973.06/2,960.10 = 674.54/x
  3. Step 3: Cross multiply
    1,973.06x = 2,960.10 × 674.54
  4. Step 4: Simplify right side
    1,973.06x = 1,996,705.85
  5. Step 5: Solve for x
    x = 1,996,705.85/1,973.06
  6. Step 6: Final answer
    x = 1,011.98

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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.