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Finding the Fourth Proportional to 32,916, 45,425.22 and 18,012

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Solution

The fourth proportional to 32,916, 45,425.22 and 18,012 is: 24,857.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,916 : 45,425.22 = 18,012 : x
  2. Step 2: Convert to fraction form
    32,916/45,425.22 = 18,012/x
  3. Step 3: Cross multiply
    32,916x = 45,425.22 × 18,012
  4. Step 4: Simplify right side
    32,916x = 818,199,062.64
  5. Step 5: Solve for x
    x = 818,199,062.64/32,916
  6. Step 6: Final answer
    x = 24,857.18

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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.