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Finding the Fourth Proportional to 57,679.70, 80,554.75 and 57,679.70

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Solution

The fourth proportional to 57,679.70, 80,554.75 and 57,679.70 is: 80,554.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,679.70 : 80,554.75 = 57,679.70 : x
  2. Step 2: Convert to fraction form
    57,679.70/80,554.75 = 57,679.70/x
  3. Step 3: Cross multiply
    57,679.70x = 80,554.75 × 57,679.70
  4. Step 4: Simplify right side
    57,679.70x = 4,646,373,813.58
  5. Step 5: Solve for x
    x = 4,646,373,813.58/57,679.70
  6. Step 6: Final answer
    x = 80,554.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.