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Finding the Fourth Proportional to 2,457.52, 3,686.44 and 726

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Solution

The fourth proportional to 2,457.52, 3,686.44 and 726 is: 1,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.52 : 3,686.44 = 726 : x
  2. Step 2: Convert to fraction form
    2,457.52/3,686.44 = 726/x
  3. Step 3: Cross multiply
    2,457.52x = 3,686.44 × 726
  4. Step 4: Simplify right side
    2,457.52x = 2,676,355.44
  5. Step 5: Solve for x
    x = 2,676,355.44/2,457.52
  6. Step 6: Final answer
    x = 1,089.05

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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.