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Finding the Fourth Proportional to 33,779.54, 46,604.40 and 21,857.96

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Solution

The fourth proportional to 33,779.54, 46,604.40 and 21,857.96 is: 30,156.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,779.54 : 46,604.40 = 21,857.96 : x
  2. Step 2: Convert to fraction form
    33,779.54/46,604.40 = 21,857.96/x
  3. Step 3: Cross multiply
    33,779.54x = 46,604.40 × 21,857.96
  4. Step 4: Simplify right side
    33,779.54x = 1,018,677,111.02
  5. Step 5: Solve for x
    x = 1,018,677,111.02/33,779.54
  6. Step 6: Final answer
    x = 30,156.63

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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.