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Finding the Fourth Proportional to 3,470.88, 5,205.93 and 873.81

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Solution

The fourth proportional to 3,470.88, 5,205.93 and 873.81 is: 1,310.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.88 : 5,205.93 = 873.81 : x
  2. Step 2: Convert to fraction form
    3,470.88/5,205.93 = 873.81/x
  3. Step 3: Cross multiply
    3,470.88x = 5,205.93 × 873.81
  4. Step 4: Simplify right side
    3,470.88x = 4,549,006.71
  5. Step 5: Solve for x
    x = 4,549,006.71/3,470.88
  6. Step 6: Final answer
    x = 1,310.62

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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.