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Finding the Fourth Proportional to 7,171.92, 10,762.11 and 3,011.67

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Solution

The fourth proportional to 7,171.92, 10,762.11 and 3,011.67 is: 4,519.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.92 : 10,762.11 = 3,011.67 : x
  2. Step 2: Convert to fraction form
    7,171.92/10,762.11 = 3,011.67/x
  3. Step 3: Cross multiply
    7,171.92x = 10,762.11 × 3,011.67
  4. Step 4: Simplify right side
    7,171.92x = 32,411,923.82
  5. Step 5: Solve for x
    x = 32,411,923.82/7,171.92
  6. Step 6: Final answer
    x = 4,519.28

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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.