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Finding the Fourth Proportional to 84,924.88, 127,405.64 and 25,765.31

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Solution

The fourth proportional to 84,924.88, 127,405.64 and 25,765.31 is: 38,653.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,924.88 : 127,405.64 = 25,765.31 : x
  2. Step 2: Convert to fraction form
    84,924.88/127,405.64 = 25,765.31/x
  3. Step 3: Cross multiply
    84,924.88x = 127,405.64 × 25,765.31
  4. Step 4: Simplify right side
    84,924.88x = 3,282,646,193.28
  5. Step 5: Solve for x
    x = 3,282,646,193.28/84,924.88
  6. Step 6: Final answer
    x = 38,653.53

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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.