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Finding the Fourth Proportional to 8,674.84, 13,011.18 and 2,830.96

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Solution

The fourth proportional to 8,674.84, 13,011.18 and 2,830.96 is: 4,246.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.84 : 13,011.18 = 2,830.96 : x
  2. Step 2: Convert to fraction form
    8,674.84/13,011.18 = 2,830.96/x
  3. Step 3: Cross multiply
    8,674.84x = 13,011.18 × 2,830.96
  4. Step 4: Simplify right side
    8,674.84x = 36,834,130.13
  5. Step 5: Solve for x
    x = 36,834,130.13/8,674.84
  6. Step 6: Final answer
    x = 4,246.09

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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.