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Finding the Fourth Proportional to 16,574.20, 24,885.60 and 12,880.60

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Solution

The fourth proportional to 16,574.20, 24,885.60 and 12,880.60 is: 19,339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,574.20 : 24,885.60 = 12,880.60 : x
  2. Step 2: Convert to fraction form
    16,574.20/24,885.60 = 12,880.60/x
  3. Step 3: Cross multiply
    16,574.20x = 24,885.60 × 12,880.60
  4. Step 4: Simplify right side
    16,574.20x = 320,541,459.36
  5. Step 5: Solve for x
    x = 320,541,459.36/16,574.20
  6. Step 6: Final answer
    x = 19,339.78

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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.