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Finding the Fourth Proportional to 32,779.80, 49,169.70 and 9,408.60

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Solution

The fourth proportional to 32,779.80, 49,169.70 and 9,408.60 is: 14,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,779.80 : 49,169.70 = 9,408.60 : x
  2. Step 2: Convert to fraction form
    32,779.80/49,169.70 = 9,408.60/x
  3. Step 3: Cross multiply
    32,779.80x = 49,169.70 × 9,408.60
  4. Step 4: Simplify right side
    32,779.80x = 462,618,039.42
  5. Step 5: Solve for x
    x = 462,618,039.42/32,779.80
  6. Step 6: Final answer
    x = 14,112.90

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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.