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Finding the Fourth Proportional to 54,607.50, 81,920.79 and 26,546.88

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Solution

The fourth proportional to 54,607.50, 81,920.79 and 26,546.88 is: 39,824.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,607.50 : 81,920.79 = 26,546.88 : x
  2. Step 2: Convert to fraction form
    54,607.50/81,920.79 = 26,546.88/x
  3. Step 3: Cross multiply
    54,607.50x = 81,920.79 × 26,546.88
  4. Step 4: Simplify right side
    54,607.50x = 2,174,741,381.64
  5. Step 5: Solve for x
    x = 2,174,741,381.64/54,607.50
  6. Step 6: Final answer
    x = 39,824.96

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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.