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Finding the Fourth Proportional to 3,812.46, 5,715.99 and 1,470.50

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Solution

The fourth proportional to 3,812.46, 5,715.99 and 1,470.50 is: 2,204.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.46 : 5,715.99 = 1,470.50 : x
  2. Step 2: Convert to fraction form
    3,812.46/5,715.99 = 1,470.50/x
  3. Step 3: Cross multiply
    3,812.46x = 5,715.99 × 1,470.50
  4. Step 4: Simplify right side
    3,812.46x = 8,405,334.72
  5. Step 5: Solve for x
    x = 8,405,334.72/3,812.46
  6. Step 6: Final answer
    x = 2,204.70

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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.