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Finding the Fourth Proportional to 3,174.91, 4,762.01 and 835.13

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Solution

The fourth proportional to 3,174.91, 4,762.01 and 835.13 is: 1,252.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.91 : 4,762.01 = 835.13 : x
  2. Step 2: Convert to fraction form
    3,174.91/4,762.01 = 835.13/x
  3. Step 3: Cross multiply
    3,174.91x = 4,762.01 × 835.13
  4. Step 4: Simplify right side
    3,174.91x = 3,976,911.40
  5. Step 5: Solve for x
    x = 3,976,911.40/3,174.91
  6. Step 6: Final answer
    x = 1,252.61

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1.5x scale

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.