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Finding the Fourth Proportional to 3,574.48, 5,361.87 and 977.41

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Solution

The fourth proportional to 3,574.48, 5,361.87 and 977.41 is: 1,466.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574.48 : 5,361.87 = 977.41 : x
  2. Step 2: Convert to fraction form
    3,574.48/5,361.87 = 977.41/x
  3. Step 3: Cross multiply
    3,574.48x = 5,361.87 × 977.41
  4. Step 4: Simplify right side
    3,574.48x = 5,240,745.36
  5. Step 5: Solve for x
    x = 5,240,745.36/3,574.48
  6. Step 6: Final answer
    x = 1,466.16

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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.