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Finding the Fourth Proportional to 16,725.60, 25,059.60 and 8,816.40

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Solution

The fourth proportional to 16,725.60, 25,059.60 and 8,816.40 is: 13,209.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,725.60 : 25,059.60 = 8,816.40 : x
  2. Step 2: Convert to fraction form
    16,725.60/25,059.60 = 8,816.40/x
  3. Step 3: Cross multiply
    16,725.60x = 25,059.60 × 8,816.40
  4. Step 4: Simplify right side
    16,725.60x = 220,935,457.44
  5. Step 5: Solve for x
    x = 220,935,457.44/16,725.60
  6. Step 6: Final answer
    x = 13,209.42

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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.