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Finding the Fourth Proportional to 14,896.05, 20,556.91 and 8,182.11

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Solution

The fourth proportional to 14,896.05, 20,556.91 and 8,182.11 is: 11,291.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,896.05 : 20,556.91 = 8,182.11 : x
  2. Step 2: Convert to fraction form
    14,896.05/20,556.91 = 8,182.11/x
  3. Step 3: Cross multiply
    14,896.05x = 20,556.91 × 8,182.11
  4. Step 4: Simplify right side
    14,896.05x = 168,199,009.21
  5. Step 5: Solve for x
    x = 168,199,009.21/14,896.05
  6. Step 6: Final answer
    x = 11,291.52

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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.