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Finding the Fourth Proportional to 8,336.80, 12,502.16 and 2,491.44

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Solution

The fourth proportional to 8,336.80, 12,502.16 and 2,491.44 is: 3,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336.80 : 12,502.16 = 2,491.44 : x
  2. Step 2: Convert to fraction form
    8,336.80/12,502.16 = 2,491.44/x
  3. Step 3: Cross multiply
    8,336.80x = 12,502.16 × 2,491.44
  4. Step 4: Simplify right side
    8,336.80x = 31,148,381.51
  5. Step 5: Solve for x
    x = 31,148,381.51/8,336.80
  6. Step 6: Final answer
    x = 3,736.25

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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.