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Finding the Fourth Proportional to 45,212.01, 67,820.82 and 11,932.11

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Solution

The fourth proportional to 45,212.01, 67,820.82 and 11,932.11 is: 17,898.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,212.01 : 67,820.82 = 11,932.11 : x
  2. Step 2: Convert to fraction form
    45,212.01/67,820.82 = 11,932.11/x
  3. Step 3: Cross multiply
    45,212.01x = 67,820.82 × 11,932.11
  4. Step 4: Simplify right side
    45,212.01x = 809,245,484.53
  5. Step 5: Solve for x
    x = 809,245,484.53/45,212.01
  6. Step 6: Final answer
    x = 17,898.91

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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.