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Finding the Fourth Proportional to 10,995.58, 16,494.08 and 3,878.95

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Solution

The fourth proportional to 10,995.58, 16,494.08 and 3,878.95 is: 5,818.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.58 : 16,494.08 = 3,878.95 : x
  2. Step 2: Convert to fraction form
    10,995.58/16,494.08 = 3,878.95/x
  3. Step 3: Cross multiply
    10,995.58x = 16,494.08 × 3,878.95
  4. Step 4: Simplify right side
    10,995.58x = 63,979,609.75
  5. Step 5: Solve for x
    x = 63,979,609.75/10,995.58
  6. Step 6: Final answer
    x = 5,818.67

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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.