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Finding the Fourth Proportional to 967.65, 1,334.83 and 835.42

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Solution

The fourth proportional to 967.65, 1,334.83 and 835.42 is: 1,152.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.65 : 1,334.83 = 835.42 : x
  2. Step 2: Convert to fraction form
    967.65/1,334.83 = 835.42/x
  3. Step 3: Cross multiply
    967.65x = 1,334.83 × 835.42
  4. Step 4: Simplify right side
    967.65x = 1,115,132.83
  5. Step 5: Solve for x
    x = 1,115,132.83/967.65
  6. Step 6: Final answer
    x = 1,152.42

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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.