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Finding the Fourth Proportional to 16,808.70, 25,225.20 and 9,405.30

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Solution

The fourth proportional to 16,808.70, 25,225.20 and 9,405.30 is: 14,114.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,808.70 : 25,225.20 = 9,405.30 : x
  2. Step 2: Convert to fraction form
    16,808.70/25,225.20 = 9,405.30/x
  3. Step 3: Cross multiply
    16,808.70x = 25,225.20 × 9,405.30
  4. Step 4: Simplify right side
    16,808.70x = 237,250,573.56
  5. Step 5: Solve for x
    x = 237,250,573.56/16,808.70
  6. Step 6: Final answer
    x = 14,114.75

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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.