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Finding the Fourth Proportional to 4,974.48, 7,462.42 and 1,686.69

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Solution

The fourth proportional to 4,974.48, 7,462.42 and 1,686.69 is: 2,530.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,974.48 : 7,462.42 = 1,686.69 : x
  2. Step 2: Convert to fraction form
    4,974.48/7,462.42 = 1,686.69/x
  3. Step 3: Cross multiply
    4,974.48x = 7,462.42 × 1,686.69
  4. Step 4: Simplify right side
    4,974.48x = 12,586,784.97
  5. Step 5: Solve for x
    x = 12,586,784.97/4,974.48
  6. Step 6: Final answer
    x = 2,530.27

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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.