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Finding the Fourth Proportional to 7,099.79, 10,652.63 and 2,940.65

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Solution

The fourth proportional to 7,099.79, 10,652.63 and 2,940.65 is: 4,412.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.79 : 10,652.63 = 2,940.65 : x
  2. Step 2: Convert to fraction form
    7,099.79/10,652.63 = 2,940.65/x
  3. Step 3: Cross multiply
    7,099.79x = 10,652.63 × 2,940.65
  4. Step 4: Simplify right side
    7,099.79x = 31,325,588.44
  5. Step 5: Solve for x
    x = 31,325,588.44/7,099.79
  6. Step 6: Final answer
    x = 4,412.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.