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Finding the Fourth Proportional to 8,367.99, 11,541.42 and 6,129.06

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Solution

The fourth proportional to 8,367.99, 11,541.42 and 6,129.06 is: 8,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.99 : 11,541.42 = 6,129.06 : x
  2. Step 2: Convert to fraction form
    8,367.99/11,541.42 = 6,129.06/x
  3. Step 3: Cross multiply
    8,367.99x = 11,541.42 × 6,129.06
  4. Step 4: Simplify right side
    8,367.99x = 70,738,055.67
  5. Step 5: Solve for x
    x = 70,738,055.67/8,367.99
  6. Step 6: Final answer
    x = 8,453.41

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1.5x scale

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.