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Finding the Fourth Proportional to 39,841.66, 59,769.78 and 13,553.92

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Solution

The fourth proportional to 39,841.66, 59,769.78 and 13,553.92 is: 20,333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,841.66 : 59,769.78 = 13,553.92 : x
  2. Step 2: Convert to fraction form
    39,841.66/59,769.78 = 13,553.92/x
  3. Step 3: Cross multiply
    39,841.66x = 59,769.78 × 13,553.92
  4. Step 4: Simplify right side
    39,841.66x = 810,114,816.54
  5. Step 5: Solve for x
    x = 810,114,816.54/39,841.66
  6. Step 6: Final answer
    x = 20,333.36

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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.