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Finding the Fourth Proportional to 6,940.76, 10,411.14 and 2,010.40

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Solution

The fourth proportional to 6,940.76, 10,411.14 and 2,010.40 is: 3,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.76 : 10,411.14 = 2,010.40 : x
  2. Step 2: Convert to fraction form
    6,940.76/10,411.14 = 2,010.40/x
  3. Step 3: Cross multiply
    6,940.76x = 10,411.14 × 2,010.40
  4. Step 4: Simplify right side
    6,940.76x = 20,930,524.77
  5. Step 5: Solve for x
    x = 20,930,524.77/6,940.76
  6. Step 6: Final answer
    x = 3,015.60

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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.