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Finding the Fourth Proportional to 7,207.99, 10,805.56 and 3,457.71

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Solution

The fourth proportional to 7,207.99, 10,805.56 and 3,457.71 is: 5,183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.99 : 10,805.56 = 3,457.71 : x
  2. Step 2: Convert to fraction form
    7,207.99/10,805.56 = 3,457.71/x
  3. Step 3: Cross multiply
    7,207.99x = 10,805.56 × 3,457.71
  4. Step 4: Simplify right side
    7,207.99x = 37,362,484.22
  5. Step 5: Solve for x
    x = 37,362,484.22/7,207.99
  6. Step 6: Final answer
    x = 5,183.48

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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.