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Finding the Fourth Proportional to 3,470.86, 5,199.81 and 2,699.74

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Solution

The fourth proportional to 3,470.86, 5,199.81 and 2,699.74 is: 4,044.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.86 : 5,199.81 = 2,699.74 : x
  2. Step 2: Convert to fraction form
    3,470.86/5,199.81 = 2,699.74/x
  3. Step 3: Cross multiply
    3,470.86x = 5,199.81 × 2,699.74
  4. Step 4: Simplify right side
    3,470.86x = 14,038,135.05
  5. Step 5: Solve for x
    x = 14,038,135.05/3,470.86
  6. Step 6: Final answer
    x = 4,044.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.