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Finding the Fourth Proportional to 16,758.70, 25,138.05 and 14,620.30

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Solution

The fourth proportional to 16,758.70, 25,138.05 and 14,620.30 is: 21,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,758.70 : 25,138.05 = 14,620.30 : x
  2. Step 2: Convert to fraction form
    16,758.70/25,138.05 = 14,620.30/x
  3. Step 3: Cross multiply
    16,758.70x = 25,138.05 × 14,620.30
  4. Step 4: Simplify right side
    16,758.70x = 367,525,832.42
  5. Step 5: Solve for x
    x = 367,525,832.42/16,758.70
  6. Step 6: Final answer
    x = 21,930.45

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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.