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Finding the Fourth Proportional to 84,659.58, 126,991.98 and 25,495.68

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Solution

The fourth proportional to 84,659.58, 126,991.98 and 25,495.68 is: 38,244.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,659.58 : 126,991.98 = 25,495.68 : x
  2. Step 2: Convert to fraction form
    84,659.58/126,991.98 = 25,495.68/x
  3. Step 3: Cross multiply
    84,659.58x = 126,991.98 × 25,495.68
  4. Step 4: Simplify right side
    84,659.58x = 3,237,746,884.65
  5. Step 5: Solve for x
    x = 3,237,746,884.65/84,659.58
  6. Step 6: Final answer
    x = 38,244.31

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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.