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Finding the Fourth Proportional to 6,991.74, 10,484.54 and 3,704.08

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Solution

The fourth proportional to 6,991.74, 10,484.54 and 3,704.08 is: 5,554.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.74 : 10,484.54 = 3,704.08 : x
  2. Step 2: Convert to fraction form
    6,991.74/10,484.54 = 3,704.08/x
  3. Step 3: Cross multiply
    6,991.74x = 10,484.54 × 3,704.08
  4. Step 4: Simplify right side
    6,991.74x = 38,835,563.74
  5. Step 5: Solve for x
    x = 38,835,563.74/6,991.74
  6. Step 6: Final answer
    x = 5,554.49

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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.