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Finding the Fourth Proportional to 10,850.70, 16,276.05 and 2,642.70

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Solution

The fourth proportional to 10,850.70, 16,276.05 and 2,642.70 is: 3,964.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,850.70 : 16,276.05 = 2,642.70 : x
  2. Step 2: Convert to fraction form
    10,850.70/16,276.05 = 2,642.70/x
  3. Step 3: Cross multiply
    10,850.70x = 16,276.05 × 2,642.70
  4. Step 4: Simplify right side
    10,850.70x = 43,012,717.34
  5. Step 5: Solve for x
    x = 43,012,717.34/10,850.70
  6. Step 6: Final answer
    x = 3,964.05

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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.