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Finding the Fourth Proportional to 53,799.88, 80,712.77 and 16,863.88

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Solution

The fourth proportional to 53,799.88, 80,712.77 and 16,863.88 is: 25,299.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,799.88 : 80,712.77 = 16,863.88 : x
  2. Step 2: Convert to fraction form
    53,799.88/80,712.77 = 16,863.88/x
  3. Step 3: Cross multiply
    53,799.88x = 80,712.77 × 16,863.88
  4. Step 4: Simplify right side
    53,799.88x = 1,361,130,467.75
  5. Step 5: Solve for x
    x = 1,361,130,467.75/53,799.88
  6. Step 6: Final answer
    x = 25,299.88

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1.5x scale

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.