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Finding the Fourth Proportional to 35,379.59, 53,060.87 and 10,412.85

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Solution

The fourth proportional to 35,379.59, 53,060.87 and 10,412.85 is: 15,616.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,379.59 : 53,060.87 = 10,412.85 : x
  2. Step 2: Convert to fraction form
    35,379.59/53,060.87 = 10,412.85/x
  3. Step 3: Cross multiply
    35,379.59x = 53,060.87 × 10,412.85
  4. Step 4: Simplify right side
    35,379.59x = 552,515,105.19
  5. Step 5: Solve for x
    x = 552,515,105.19/35,379.59
  6. Step 6: Final answer
    x = 15,616.78

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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.