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Finding the Fourth Proportional to 5,360.42, 7,397.42 and 3,002.55

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Solution

The fourth proportional to 5,360.42, 7,397.42 and 3,002.55 is: 4,143.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.42 : 7,397.42 = 3,002.55 : x
  2. Step 2: Convert to fraction form
    5,360.42/7,397.42 = 3,002.55/x
  3. Step 3: Cross multiply
    5,360.42x = 7,397.42 × 3,002.55
  4. Step 4: Simplify right side
    5,360.42x = 22,211,108.41
  5. Step 5: Solve for x
    x = 22,211,108.41/5,360.42
  6. Step 6: Final answer
    x = 4,143.54

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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.