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Finding the Fourth Proportional to 3,574.38, 5,361.66 and 977.34

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Solution

The fourth proportional to 3,574.38, 5,361.66 and 977.34 is: 1,466.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574.38 : 5,361.66 = 977.34 : x
  2. Step 2: Convert to fraction form
    3,574.38/5,361.66 = 977.34/x
  3. Step 3: Cross multiply
    3,574.38x = 5,361.66 × 977.34
  4. Step 4: Simplify right side
    3,574.38x = 5,240,164.78
  5. Step 5: Solve for x
    x = 5,240,164.78/3,574.38
  6. Step 6: Final answer
    x = 1,466.03

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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.