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Finding the Fourth Proportional to 9,339.55, 13,940.96 and 8,232.41

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Solution

The fourth proportional to 9,339.55, 13,940.96 and 8,232.41 is: 12,288.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,339.55 : 13,940.96 = 8,232.41 : x
  2. Step 2: Convert to fraction form
    9,339.55/13,940.96 = 8,232.41/x
  3. Step 3: Cross multiply
    9,339.55x = 13,940.96 × 8,232.41
  4. Step 4: Simplify right side
    9,339.55x = 114,767,657.35
  5. Step 5: Solve for x
    x = 114,767,657.35/9,339.55
  6. Step 6: Final answer
    x = 12,288.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.