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Finding the Fourth Proportional to 53,245.60, 79,859.92 and 17,703.96

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Solution

The fourth proportional to 53,245.60, 79,859.92 and 17,703.96 is: 26,553.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,245.60 : 79,859.92 = 17,703.96 : x
  2. Step 2: Convert to fraction form
    53,245.60/79,859.92 = 17,703.96/x
  3. Step 3: Cross multiply
    53,245.60x = 79,859.92 × 17,703.96
  4. Step 4: Simplify right side
    53,245.60x = 1,413,836,829.28
  5. Step 5: Solve for x
    x = 1,413,836,829.28/53,245.60
  6. Step 6: Final answer
    x = 26,553.12

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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.