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Finding the Fourth Proportional to 10,956.70, 16,434.93 and 2,748.70

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Solution

The fourth proportional to 10,956.70, 16,434.93 and 2,748.70 is: 4,123.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.70 : 16,434.93 = 2,748.70 : x
  2. Step 2: Convert to fraction form
    10,956.70/16,434.93 = 2,748.70/x
  3. Step 3: Cross multiply
    10,956.70x = 16,434.93 × 2,748.70
  4. Step 4: Simplify right side
    10,956.70x = 45,174,692.09
  5. Step 5: Solve for x
    x = 45,174,692.09/10,956.70
  6. Step 6: Final answer
    x = 4,123.02

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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.