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Finding the Fourth Proportional to 53,893.98, 80,821.26 and 20,597.58

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Solution

The fourth proportional to 53,893.98, 80,821.26 and 20,597.58 is: 30,888.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,893.98 : 80,821.26 = 20,597.58 : x
  2. Step 2: Convert to fraction form
    53,893.98/80,821.26 = 20,597.58/x
  3. Step 3: Cross multiply
    53,893.98x = 80,821.26 × 20,597.58
  4. Step 4: Simplify right side
    53,893.98x = 1,664,722,368.55
  5. Step 5: Solve for x
    x = 1,664,722,368.55/53,893.98
  6. Step 6: Final answer
    x = 30,888.84

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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.