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Finding the Fourth Proportional to 25,515.60, 38,273.40 and 22,136.40

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Solution

The fourth proportional to 25,515.60, 38,273.40 and 22,136.40 is: 33,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515.60 : 38,273.40 = 22,136.40 : x
  2. Step 2: Convert to fraction form
    25,515.60/38,273.40 = 22,136.40/x
  3. Step 3: Cross multiply
    25,515.60x = 38,273.40 × 22,136.40
  4. Step 4: Simplify right side
    25,515.60x = 847,235,291.76
  5. Step 5: Solve for x
    x = 847,235,291.76/25,515.60
  6. Step 6: Final answer
    x = 33,204.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.