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Finding the Fourth Proportional to 43,178.16, 64,750.86 and 16,879.62

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Solution

The fourth proportional to 43,178.16, 64,750.86 and 16,879.62 is: 25,313.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,178.16 : 64,750.86 = 16,879.62 : x
  2. Step 2: Convert to fraction form
    43,178.16/64,750.86 = 16,879.62/x
  3. Step 3: Cross multiply
    43,178.16x = 64,750.86 × 16,879.62
  4. Step 4: Simplify right side
    43,178.16x = 1,092,969,911.47
  5. Step 5: Solve for x
    x = 1,092,969,911.47/43,178.16
  6. Step 6: Final answer
    x = 25,313.03

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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.