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Finding the Fourth Proportional to 6,558.81, 9,051.90 and 4,040.43

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Solution

The fourth proportional to 6,558.81, 9,051.90 and 4,040.43 is: 5,576.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,558.81 : 9,051.90 = 4,040.43 : x
  2. Step 2: Convert to fraction form
    6,558.81/9,051.90 = 4,040.43/x
  3. Step 3: Cross multiply
    6,558.81x = 9,051.90 × 4,040.43
  4. Step 4: Simplify right side
    6,558.81x = 36,573,568.32
  5. Step 5: Solve for x
    x = 36,573,568.32/6,558.81
  6. Step 6: Final answer
    x = 5,576.25

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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.