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Finding the Fourth Proportional to 5,390.01, 7,432.10 and 3,796.16

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Solution

The fourth proportional to 5,390.01, 7,432.10 and 3,796.16 is: 5,234.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.01 : 7,432.10 = 3,796.16 : x
  2. Step 2: Convert to fraction form
    5,390.01/7,432.10 = 3,796.16/x
  3. Step 3: Cross multiply
    5,390.01x = 7,432.10 × 3,796.16
  4. Step 4: Simplify right side
    5,390.01x = 28,213,384.59
  5. Step 5: Solve for x
    x = 28,213,384.59/5,390.01
  6. Step 6: Final answer
    x = 5,234.38

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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.