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Finding the Fourth Proportional to 9,440.12, 12,974.08 and 7,340.60

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Solution

The fourth proportional to 9,440.12, 12,974.08 and 7,340.60 is: 10,088.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,440.12 : 12,974.08 = 7,340.60 : x
  2. Step 2: Convert to fraction form
    9,440.12/12,974.08 = 7,340.60/x
  3. Step 3: Cross multiply
    9,440.12x = 12,974.08 × 7,340.60
  4. Step 4: Simplify right side
    9,440.12x = 95,237,531.65
  5. Step 5: Solve for x
    x = 95,237,531.65/9,440.12
  6. Step 6: Final answer
    x = 10,088.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.