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Finding the Fourth Proportional to 13,271.97, 19,906.10 and 4,950.91

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Solution

The fourth proportional to 13,271.97, 19,906.10 and 4,950.91 is: 7,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.97 : 19,906.10 = 4,950.91 : x
  2. Step 2: Convert to fraction form
    13,271.97/19,906.10 = 4,950.91/x
  3. Step 3: Cross multiply
    13,271.97x = 19,906.10 × 4,950.91
  4. Step 4: Simplify right side
    13,271.97x = 98,553,309.55
  5. Step 5: Solve for x
    x = 98,553,309.55/13,271.97
  6. Step 6: Final answer
    x = 7,425.67

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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.