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Finding the Fourth Proportional to 4,999.79, 7,491.46 and 1,711.08

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Solution

The fourth proportional to 4,999.79, 7,491.46 and 1,711.08 is: 2,563.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.79 : 7,491.46 = 1,711.08 : x
  2. Step 2: Convert to fraction form
    4,999.79/7,491.46 = 1,711.08/x
  3. Step 3: Cross multiply
    4,999.79x = 7,491.46 × 1,711.08
  4. Step 4: Simplify right side
    4,999.79x = 12,818,489.52
  5. Step 5: Solve for x
    x = 12,818,489.52/4,999.79
  6. Step 6: Final answer
    x = 2,563.81

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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.