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Finding the Fourth Proportional to 57,779.60, 86,698.20 and 32,838.80

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Solution

The fourth proportional to 57,779.60, 86,698.20 and 32,838.80 is: 49,274.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,779.60 : 86,698.20 = 32,838.80 : x
  2. Step 2: Convert to fraction form
    57,779.60/86,698.20 = 32,838.80/x
  3. Step 3: Cross multiply
    57,779.60x = 86,698.20 × 32,838.80
  4. Step 4: Simplify right side
    57,779.60x = 2,847,064,850.16
  5. Step 5: Solve for x
    x = 2,847,064,850.16/57,779.60
  6. Step 6: Final answer
    x = 49,274.57

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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.