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Finding the Fourth Proportional to 16,392.78, 24,591.60 and 8,602.20

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Solution

The fourth proportional to 16,392.78, 24,591.60 and 8,602.20 is: 12,904.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,392.78 : 24,591.60 = 8,602.20 : x
  2. Step 2: Convert to fraction form
    16,392.78/24,591.60 = 8,602.20/x
  3. Step 3: Cross multiply
    16,392.78x = 24,591.60 × 8,602.20
  4. Step 4: Simplify right side
    16,392.78x = 211,541,861.52
  5. Step 5: Solve for x
    x = 211,541,861.52/16,392.78
  6. Step 6: Final answer
    x = 12,904.58

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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.