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Finding the Fourth Proportional to 66,893.20, 100,339.96 and 16,973.20

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Solution

The fourth proportional to 66,893.20, 100,339.96 and 16,973.20 is: 25,459.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,893.20 : 100,339.96 = 16,973.20 : x
  2. Step 2: Convert to fraction form
    66,893.20/100,339.96 = 16,973.20/x
  3. Step 3: Cross multiply
    66,893.20x = 100,339.96 × 16,973.20
  4. Step 4: Simplify right side
    66,893.20x = 1,703,090,209.07
  5. Step 5: Solve for x
    x = 1,703,090,209.07/66,893.20
  6. Step 6: Final answer
    x = 25,459.84

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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.