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Finding the Fourth Proportional to 33,908.40, 46,763.16 and 21,959.28

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Solution

The fourth proportional to 33,908.40, 46,763.16 and 21,959.28 is: 30,284.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,908.40 : 46,763.16 = 21,959.28 : x
  2. Step 2: Convert to fraction form
    33,908.40/46,763.16 = 21,959.28/x
  3. Step 3: Cross multiply
    33,908.40x = 46,763.16 × 21,959.28
  4. Step 4: Simplify right side
    33,908.40x = 1,026,885,324.12
  5. Step 5: Solve for x
    x = 1,026,885,324.12/33,908.40
  6. Step 6: Final answer
    x = 30,284.10

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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.