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Finding the Fourth Proportional to 33,993, 46,909.32 and 18,885.60

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Solution

The fourth proportional to 33,993, 46,909.32 and 18,885.60 is: 26,061.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,993 : 46,909.32 = 18,885.60 : x
  2. Step 2: Convert to fraction form
    33,993/46,909.32 = 18,885.60/x
  3. Step 3: Cross multiply
    33,993x = 46,909.32 × 18,885.60
  4. Step 4: Simplify right side
    33,993x = 885,910,653.79
  5. Step 5: Solve for x
    x = 885,910,653.79/33,993
  6. Step 6: Final answer
    x = 26,061.56

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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.