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Finding the Fourth Proportional to 18,779.58, 25,777.81 and 16,607.57

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Solution

The fourth proportional to 18,779.58, 25,777.81 and 16,607.57 is: 22,796.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779.58 : 25,777.81 = 16,607.57 : x
  2. Step 2: Convert to fraction form
    18,779.58/25,777.81 = 16,607.57/x
  3. Step 3: Cross multiply
    18,779.58x = 25,777.81 × 16,607.57
  4. Step 4: Simplify right side
    18,779.58x = 428,106,675.89
  5. Step 5: Solve for x
    x = 428,106,675.89/18,779.58
  6. Step 6: Final answer
    x = 22,796.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.