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Finding the Fourth Proportional to 5,541.17, 8,313.15 and 1,645.48

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Solution

The fourth proportional to 5,541.17, 8,313.15 and 1,645.48 is: 2,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,541.17 : 8,313.15 = 1,645.48 : x
  2. Step 2: Convert to fraction form
    5,541.17/8,313.15 = 1,645.48/x
  3. Step 3: Cross multiply
    5,541.17x = 8,313.15 × 1,645.48
  4. Step 4: Simplify right side
    5,541.17x = 13,679,080.50
  5. Step 5: Solve for x
    x = 13,679,080.50/5,541.17
  6. Step 6: Final answer
    x = 2,468.63

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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.