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Finding the Fourth Proportional to 5,907.86, 8,153.03 and 3,390.43

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Solution

The fourth proportional to 5,907.86, 8,153.03 and 3,390.43 is: 4,678.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,907.86 : 8,153.03 = 3,390.43 : x
  2. Step 2: Convert to fraction form
    5,907.86/8,153.03 = 3,390.43/x
  3. Step 3: Cross multiply
    5,907.86x = 8,153.03 × 3,390.43
  4. Step 4: Simplify right side
    5,907.86x = 27,642,280.88
  5. Step 5: Solve for x
    x = 27,642,280.88/5,907.86
  6. Step 6: Final answer
    x = 4,678.90

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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.