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Finding the Fourth Proportional to 57,046.96, 85,578.90 and 19,616.68

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Solution

The fourth proportional to 57,046.96, 85,578.90 and 19,616.68 is: 29,427.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,046.96 : 85,578.90 = 19,616.68 : x
  2. Step 2: Convert to fraction form
    57,046.96/85,578.90 = 19,616.68/x
  3. Step 3: Cross multiply
    57,046.96x = 85,578.90 × 19,616.68
  4. Step 4: Simplify right side
    57,046.96x = 1,678,773,896.05
  5. Step 5: Solve for x
    x = 1,678,773,896.05/57,046.96
  6. Step 6: Final answer
    x = 29,427.93

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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.