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Finding the Fourth Proportional to 33,416.40, 46,113.48 and 18,512.40

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Solution

The fourth proportional to 33,416.40, 46,113.48 and 18,512.40 is: 25,546.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,416.40 : 46,113.48 = 18,512.40 : x
  2. Step 2: Convert to fraction form
    33,416.40/46,113.48 = 18,512.40/x
  3. Step 3: Cross multiply
    33,416.40x = 46,113.48 × 18,512.40
  4. Step 4: Simplify right side
    33,416.40x = 853,671,187.15
  5. Step 5: Solve for x
    x = 853,671,187.15/33,416.40
  6. Step 6: Final answer
    x = 25,546.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.