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Finding the Fourth Proportional to 2,503.42, 3,455.16 and 2,392.72

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Solution

The fourth proportional to 2,503.42, 3,455.16 and 2,392.72 is: 3,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,503.42 : 3,455.16 = 2,392.72 : x
  2. Step 2: Convert to fraction form
    2,503.42/3,455.16 = 2,392.72/x
  3. Step 3: Cross multiply
    2,503.42x = 3,455.16 × 2,392.72
  4. Step 4: Simplify right side
    2,503.42x = 8,267,230.44
  5. Step 5: Solve for x
    x = 8,267,230.44/2,503.42
  6. Step 6: Final answer
    x = 3,302.37

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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.