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Finding the Fourth Proportional to 9,375.64, 12,940.95 and 5,836.75

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Solution

The fourth proportional to 9,375.64, 12,940.95 and 5,836.75 is: 8,056.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.64 : 12,940.95 = 5,836.75 : x
  2. Step 2: Convert to fraction form
    9,375.64/12,940.95 = 5,836.75/x
  3. Step 3: Cross multiply
    9,375.64x = 12,940.95 × 5,836.75
  4. Step 4: Simplify right side
    9,375.64x = 75,533,089.91
  5. Step 5: Solve for x
    x = 75,533,089.91/9,375.64
  6. Step 6: Final answer
    x = 8,056.31

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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.