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Finding the Fourth Proportional to 7,686.01, 11,532.21 and 3,244.78

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Solution

The fourth proportional to 7,686.01, 11,532.21 and 3,244.78 is: 4,868.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.01 : 11,532.21 = 3,244.78 : x
  2. Step 2: Convert to fraction form
    7,686.01/11,532.21 = 3,244.78/x
  3. Step 3: Cross multiply
    7,686.01x = 11,532.21 × 3,244.78
  4. Step 4: Simplify right side
    7,686.01x = 37,419,484.36
  5. Step 5: Solve for x
    x = 37,419,484.36/7,686.01
  6. Step 6: Final answer
    x = 4,868.52

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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.