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Finding the Fourth Proportional to 5,574.98, 7,687.73 and 3,895.77

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Solution

The fourth proportional to 5,574.98, 7,687.73 and 3,895.77 is: 5,372.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,574.98 : 7,687.73 = 3,895.77 : x
  2. Step 2: Convert to fraction form
    5,574.98/7,687.73 = 3,895.77/x
  3. Step 3: Cross multiply
    5,574.98x = 7,687.73 × 3,895.77
  4. Step 4: Simplify right side
    5,574.98x = 29,949,666.47
  5. Step 5: Solve for x
    x = 29,949,666.47/5,574.98
  6. Step 6: Final answer
    x = 5,372.15

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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.