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Finding the Fourth Proportional to 1,151.01, 1,725.94 and 682.96

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Solution

The fourth proportional to 1,151.01, 1,725.94 and 682.96 is: 1,024.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.01 : 1,725.94 = 682.96 : x
  2. Step 2: Convert to fraction form
    1,151.01/1,725.94 = 682.96/x
  3. Step 3: Cross multiply
    1,151.01x = 1,725.94 × 682.96
  4. Step 4: Simplify right side
    1,151.01x = 1,178,747.98
  5. Step 5: Solve for x
    x = 1,178,747.98/1,151.01
  6. Step 6: Final answer
    x = 1,024.10

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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.