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Finding the Fourth Proportional to 16,748.70, 25,101.45 and 7,964.70

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Solution

The fourth proportional to 16,748.70, 25,101.45 and 7,964.70 is: 11,936.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,748.70 : 25,101.45 = 7,964.70 : x
  2. Step 2: Convert to fraction form
    16,748.70/25,101.45 = 7,964.70/x
  3. Step 3: Cross multiply
    16,748.70x = 25,101.45 × 7,964.70
  4. Step 4: Simplify right side
    16,748.70x = 199,925,518.82
  5. Step 5: Solve for x
    x = 199,925,518.82/16,748.70
  6. Step 6: Final answer
    x = 11,936.78

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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.