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Finding the Fourth Proportional to 56,491.92, 84,736.82 and 13,798.04

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Solution

The fourth proportional to 56,491.92, 84,736.82 and 13,798.04 is: 20,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,491.92 : 84,736.82 = 13,798.04 : x
  2. Step 2: Convert to fraction form
    56,491.92/84,736.82 = 13,798.04/x
  3. Step 3: Cross multiply
    56,491.92x = 84,736.82 × 13,798.04
  4. Step 4: Simplify right side
    56,491.92x = 1,169,201,785.50
  5. Step 5: Solve for x
    x = 1,169,201,785.50/56,491.92
  6. Step 6: Final answer
    x = 20,696.80

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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.