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Finding the Fourth Proportional to 81,495.72, 122,260.86 and 25,334.46

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Solution

The fourth proportional to 81,495.72, 122,260.86 and 25,334.46 is: 38,007.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,495.72 : 122,260.86 = 25,334.46 : x
  2. Step 2: Convert to fraction form
    81,495.72/122,260.86 = 25,334.46/x
  3. Step 3: Cross multiply
    81,495.72x = 122,260.86 × 25,334.46
  4. Step 4: Simplify right side
    81,495.72x = 3,097,412,867.24
  5. Step 5: Solve for x
    x = 3,097,412,867.24/81,495.72
  6. Step 6: Final answer
    x = 38,007.06

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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.