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Finding the Fourth Proportional to 10,850.45, 16,275.69 and 2,642.45

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Solution

The fourth proportional to 10,850.45, 16,275.69 and 2,642.45 is: 3,963.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,850.45 : 16,275.69 = 2,642.45 : x
  2. Step 2: Convert to fraction form
    10,850.45/16,275.69 = 2,642.45/x
  3. Step 3: Cross multiply
    10,850.45x = 16,275.69 × 2,642.45
  4. Step 4: Simplify right side
    10,850.45x = 43,007,615.66
  5. Step 5: Solve for x
    x = 43,007,615.66/10,850.45
  6. Step 6: Final answer
    x = 3,963.67

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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.