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Finding the Fourth Proportional to 2,392.67, 3,576.16 and 2,157.87

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Solution

The fourth proportional to 2,392.67, 3,576.16 and 2,157.87 is: 3,225.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.67 : 3,576.16 = 2,157.87 : x
  2. Step 2: Convert to fraction form
    2,392.67/3,576.16 = 2,157.87/x
  3. Step 3: Cross multiply
    2,392.67x = 3,576.16 × 2,157.87
  4. Step 4: Simplify right side
    2,392.67x = 7,716,888.38
  5. Step 5: Solve for x
    x = 7,716,888.38/2,392.67
  6. Step 6: Final answer
    x = 3,225.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.