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Finding the Fourth Proportional to 57,732.45, 80,628.60 and 57,732.45

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Solution

The fourth proportional to 57,732.45, 80,628.60 and 57,732.45 is: 80,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,732.45 : 80,628.60 = 57,732.45 : x
  2. Step 2: Convert to fraction form
    57,732.45/80,628.60 = 57,732.45/x
  3. Step 3: Cross multiply
    57,732.45x = 80,628.60 × 57,732.45
  4. Step 4: Simplify right side
    57,732.45x = 4,654,886,618.07
  5. Step 5: Solve for x
    x = 4,654,886,618.07/57,732.45
  6. Step 6: Final answer
    x = 80,628.60

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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.