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Finding the Fourth Proportional to 36,216.32, 54,332 and 11,255.68

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Solution

The fourth proportional to 36,216.32, 54,332 and 11,255.68 is: 16,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,216.32 : 54,332 = 11,255.68 : x
  2. Step 2: Convert to fraction form
    36,216.32/54,332 = 11,255.68/x
  3. Step 3: Cross multiply
    36,216.32x = 54,332 × 11,255.68
  4. Step 4: Simplify right side
    36,216.32x = 611,543,605.76
  5. Step 5: Solve for x
    x = 611,543,605.76/36,216.32
  6. Step 6: Final answer
    x = 16,885.86

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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.