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Finding the Fourth Proportional to 2,474.94, 3,415.50 and 1,355.94

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Solution

The fourth proportional to 2,474.94, 3,415.50 and 1,355.94 is: 1,871.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,474.94 : 3,415.50 = 1,355.94 : x
  2. Step 2: Convert to fraction form
    2,474.94/3,415.50 = 1,355.94/x
  3. Step 3: Cross multiply
    2,474.94x = 3,415.50 × 1,355.94
  4. Step 4: Simplify right side
    2,474.94x = 4,631,206.29
  5. Step 5: Solve for x
    x = 4,631,206.29/2,474.94
  6. Step 6: Final answer
    x = 1,871.24

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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.