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Finding the Fourth Proportional to 1,136.15, 1,700.96 and 700.37

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Solution

The fourth proportional to 1,136.15, 1,700.96 and 700.37 is: 1,048.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.15 : 1,700.96 = 700.37 : x
  2. Step 2: Convert to fraction form
    1,136.15/1,700.96 = 700.37/x
  3. Step 3: Cross multiply
    1,136.15x = 1,700.96 × 700.37
  4. Step 4: Simplify right side
    1,136.15x = 1,191,289.35
  5. Step 5: Solve for x
    x = 1,191,289.35/1,136.15
  6. Step 6: Final answer
    x = 1,048.54

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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.