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Finding the Fourth Proportional to 2,674.29, 4,011.87 and 824.98

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Solution

The fourth proportional to 2,674.29, 4,011.87 and 824.98 is: 1,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.29 : 4,011.87 = 824.98 : x
  2. Step 2: Convert to fraction form
    2,674.29/4,011.87 = 824.98/x
  3. Step 3: Cross multiply
    2,674.29x = 4,011.87 × 824.98
  4. Step 4: Simplify right side
    2,674.29x = 3,309,699.50
  5. Step 5: Solve for x
    x = 3,309,699.50/2,674.29
  6. Step 6: Final answer
    x = 1,237.60

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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.