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Finding the Fourth Proportional to 84,992.63, 127,491.64 and 25,828.81

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Solution

The fourth proportional to 84,992.63, 127,491.64 and 25,828.81 is: 38,744.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,992.63 : 127,491.64 = 25,828.81 : x
  2. Step 2: Convert to fraction form
    84,992.63/127,491.64 = 25,828.81/x
  3. Step 3: Cross multiply
    84,992.63x = 127,491.64 × 25,828.81
  4. Step 4: Simplify right side
    84,992.63x = 3,292,956,962.85
  5. Step 5: Solve for x
    x = 3,292,956,962.85/84,992.63
  6. Step 6: Final answer
    x = 38,744.03

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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.