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Finding the Fourth Proportional to 10,751.70, 16,122.15 and 4,901.70

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Solution

The fourth proportional to 10,751.70, 16,122.15 and 4,901.70 is: 7,350.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,751.70 : 16,122.15 = 4,901.70 : x
  2. Step 2: Convert to fraction form
    10,751.70/16,122.15 = 4,901.70/x
  3. Step 3: Cross multiply
    10,751.70x = 16,122.15 × 4,901.70
  4. Step 4: Simplify right side
    10,751.70x = 79,025,942.66
  5. Step 5: Solve for x
    x = 79,025,942.66/10,751.70
  6. Step 6: Final answer
    x = 7,350.09

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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.