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Finding the Fourth Proportional to 40,644.92, 60,978.33 and 16,944.59

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Solution

The fourth proportional to 40,644.92, 60,978.33 and 16,944.59 is: 25,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,644.92 : 60,978.33 = 16,944.59 : x
  2. Step 2: Convert to fraction form
    40,644.92/60,978.33 = 16,944.59/x
  3. Step 3: Cross multiply
    40,644.92x = 60,978.33 × 16,944.59
  4. Step 4: Simplify right side
    40,644.92x = 1,033,252,495.84
  5. Step 5: Solve for x
    x = 1,033,252,495.84/40,644.92
  6. Step 6: Final answer
    x = 25,421.45

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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.