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Finding the Fourth Proportional to 84,598.56, 126,905.66 and 27,672.79

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Solution

The fourth proportional to 84,598.56, 126,905.66 and 27,672.79 is: 41,511.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,598.56 : 126,905.66 = 27,672.79 : x
  2. Step 2: Convert to fraction form
    84,598.56/126,905.66 = 27,672.79/x
  3. Step 3: Cross multiply
    84,598.56x = 126,905.66 × 27,672.79
  4. Step 4: Simplify right side
    84,598.56x = 3,511,833,430.91
  5. Step 5: Solve for x
    x = 3,511,833,430.91/84,598.56
  6. Step 6: Final answer
    x = 41,511.74

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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.