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Finding the Fourth Proportional to 10,808.76, 16,213.12 and 2,600.76

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Solution

The fourth proportional to 10,808.76, 16,213.12 and 2,600.76 is: 3,901.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,808.76 : 16,213.12 = 2,600.76 : x
  2. Step 2: Convert to fraction form
    10,808.76/16,213.12 = 2,600.76/x
  3. Step 3: Cross multiply
    10,808.76x = 16,213.12 × 2,600.76
  4. Step 4: Simplify right side
    10,808.76x = 42,166,433.97
  5. Step 5: Solve for x
    x = 42,166,433.97/10,808.76
  6. Step 6: Final answer
    x = 3,901.14

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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.