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Finding the Fourth Proportional to 9,357.53, 12,902.90 and 6,375.11

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Solution

The fourth proportional to 9,357.53, 12,902.90 and 6,375.11 is: 8,790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,357.53 : 12,902.90 = 6,375.11 : x
  2. Step 2: Convert to fraction form
    9,357.53/12,902.90 = 6,375.11/x
  3. Step 3: Cross multiply
    9,357.53x = 12,902.90 × 6,375.11
  4. Step 4: Simplify right side
    9,357.53x = 82,257,310.43
  5. Step 5: Solve for x
    x = 82,257,310.43/9,357.53
  6. Step 6: Final answer
    x = 8,790.50

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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.