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Finding the Fourth Proportional to 40,810.96, 61,216.40 and 11,228.96

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Solution

The fourth proportional to 40,810.96, 61,216.40 and 11,228.96 is: 16,843.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,810.96 : 61,216.40 = 11,228.96 : x
  2. Step 2: Convert to fraction form
    40,810.96/61,216.40 = 11,228.96/x
  3. Step 3: Cross multiply
    40,810.96x = 61,216.40 × 11,228.96
  4. Step 4: Simplify right side
    40,810.96x = 687,396,506.94
  5. Step 5: Solve for x
    x = 687,396,506.94/40,810.96
  6. Step 6: Final answer
    x = 16,843.43

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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.