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Finding the Fourth Proportional to 57,084.54, 85,605.57 and 19,634.10

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Solution

The fourth proportional to 57,084.54, 85,605.57 and 19,634.10 is: 29,443.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,084.54 : 85,605.57 = 19,634.10 : x
  2. Step 2: Convert to fraction form
    57,084.54/85,605.57 = 19,634.10/x
  3. Step 3: Cross multiply
    57,084.54x = 85,605.57 × 19,634.10
  4. Step 4: Simplify right side
    57,084.54x = 1,680,788,321.94
  5. Step 5: Solve for x
    x = 1,680,788,321.94/57,084.54
  6. Step 6: Final answer
    x = 29,443.84

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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.