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Finding the Fourth Proportional to 11,960.76, 17,930.88 and 4,560

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Solution

The fourth proportional to 11,960.76, 17,930.88 and 4,560 is: 6,836.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,960.76 : 17,930.88 = 4,560 : x
  2. Step 2: Convert to fraction form
    11,960.76/17,930.88 = 4,560/x
  3. Step 3: Cross multiply
    11,960.76x = 17,930.88 × 4,560
  4. Step 4: Simplify right side
    11,960.76x = 81,764,812.80
  5. Step 5: Solve for x
    x = 81,764,812.80/11,960.76
  6. Step 6: Final answer
    x = 6,836.09

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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.