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Finding the Fourth Proportional to 5,463.25, 7,539.30 and 2,979.25

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Solution

The fourth proportional to 5,463.25, 7,539.30 and 2,979.25 is: 4,111.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,463.25 : 7,539.30 = 2,979.25 : x
  2. Step 2: Convert to fraction form
    5,463.25/7,539.30 = 2,979.25/x
  3. Step 3: Cross multiply
    5,463.25x = 7,539.30 × 2,979.25
  4. Step 4: Simplify right side
    5,463.25x = 22,461,459.53
  5. Step 5: Solve for x
    x = 22,461,459.53/5,463.25
  6. Step 6: Final answer
    x = 4,111.37

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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.