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Finding the Fourth Proportional to 84,662.58, 126,996.48 and 25,498.68

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Solution

The fourth proportional to 84,662.58, 126,996.48 and 25,498.68 is: 38,248.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,662.58 : 126,996.48 = 25,498.68 : x
  2. Step 2: Convert to fraction form
    84,662.58/126,996.48 = 25,498.68/x
  3. Step 3: Cross multiply
    84,662.58x = 126,996.48 × 25,498.68
  4. Step 4: Simplify right side
    84,662.58x = 3,238,242,604.65
  5. Step 5: Solve for x
    x = 3,238,242,604.65/84,662.58
  6. Step 6: Final answer
    x = 38,248.81

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1.5x scale

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.