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Finding the Fourth Proportional to 39,324.96, 58,983.12 and 13,029.12

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Solution

The fourth proportional to 39,324.96, 58,983.12 and 13,029.12 is: 19,542.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,324.96 : 58,983.12 = 13,029.12 : x
  2. Step 2: Convert to fraction form
    39,324.96/58,983.12 = 13,029.12/x
  3. Step 3: Cross multiply
    39,324.96x = 58,983.12 × 13,029.12
  4. Step 4: Simplify right side
    39,324.96x = 768,498,148.45
  5. Step 5: Solve for x
    x = 768,498,148.45/39,324.96
  6. Step 6: Final answer
    x = 19,542.25

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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.