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Finding the Fourth Proportional to 53,929.80, 80,884.26 and 16,480.80

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Solution

The fourth proportional to 53,929.80, 80,884.26 and 16,480.80 is: 24,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,929.80 : 80,884.26 = 16,480.80 : x
  2. Step 2: Convert to fraction form
    53,929.80/80,884.26 = 16,480.80/x
  3. Step 3: Cross multiply
    53,929.80x = 80,884.26 × 16,480.80
  4. Step 4: Simplify right side
    53,929.80x = 1,333,037,312.21
  5. Step 5: Solve for x
    x = 1,333,037,312.21/53,929.80
  6. Step 6: Final answer
    x = 24,718.01

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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.