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Finding the Fourth Proportional to 18,795.60, 28,193.40 and 16,491.60

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Solution

The fourth proportional to 18,795.60, 28,193.40 and 16,491.60 is: 24,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.60 : 28,193.40 = 16,491.60 : x
  2. Step 2: Convert to fraction form
    18,795.60/28,193.40 = 16,491.60/x
  3. Step 3: Cross multiply
    18,795.60x = 28,193.40 × 16,491.60
  4. Step 4: Simplify right side
    18,795.60x = 464,954,275.44
  5. Step 5: Solve for x
    x = 464,954,275.44/18,795.60
  6. Step 6: Final answer
    x = 24,737.40

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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.