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Finding the Fourth Proportional to 82,896.80, 124,345.17 and 20,567.30

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Solution

The fourth proportional to 82,896.80, 124,345.17 and 20,567.30 is: 30,850.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,896.80 : 124,345.17 = 20,567.30 : x
  2. Step 2: Convert to fraction form
    82,896.80/124,345.17 = 20,567.30/x
  3. Step 3: Cross multiply
    82,896.80x = 124,345.17 × 20,567.30
  4. Step 4: Simplify right side
    82,896.80x = 2,557,444,414.94
  5. Step 5: Solve for x
    x = 2,557,444,414.94/82,896.80
  6. Step 6: Final answer
    x = 30,850.94

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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.