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Finding the Fourth Proportional to 53,804.88, 80,720.28 and 16,868.88

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Solution

The fourth proportional to 53,804.88, 80,720.28 and 16,868.88 is: 25,307.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,804.88 : 80,720.28 = 16,868.88 : x
  2. Step 2: Convert to fraction form
    53,804.88/80,720.28 = 16,868.88/x
  3. Step 3: Cross multiply
    53,804.88x = 80,720.28 × 16,868.88
  4. Step 4: Simplify right side
    53,804.88x = 1,361,660,716.89
  5. Step 5: Solve for x
    x = 1,361,660,716.89/53,804.88
  6. Step 6: Final answer
    x = 25,307.38

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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.