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Finding the Fourth Proportional to 13,011.99, 17,950.64 and 8,293.34

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Solution

The fourth proportional to 13,011.99, 17,950.64 and 8,293.34 is: 11,441.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.99 : 17,950.64 = 8,293.34 : x
  2. Step 2: Convert to fraction form
    13,011.99/17,950.64 = 8,293.34/x
  3. Step 3: Cross multiply
    13,011.99x = 17,950.64 × 8,293.34
  4. Step 4: Simplify right side
    13,011.99x = 148,870,629.52
  5. Step 5: Solve for x
    x = 148,870,629.52/13,011.99
  6. Step 6: Final answer
    x = 11,441.03

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.