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Finding the Fourth Proportional to 5,457.08, 7,525.12 and 3,863

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Solution

The fourth proportional to 5,457.08, 7,525.12 and 3,863 is: 5,326.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.08 : 7,525.12 = 3,863 : x
  2. Step 2: Convert to fraction form
    5,457.08/7,525.12 = 3,863/x
  3. Step 3: Cross multiply
    5,457.08x = 7,525.12 × 3,863
  4. Step 4: Simplify right side
    5,457.08x = 29,069,538.56
  5. Step 5: Solve for x
    x = 29,069,538.56/5,457.08
  6. Step 6: Final answer
    x = 5,326.94

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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.