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Finding the Fourth Proportional to 34,959.30, 48,224.88 and 20,809.41

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Solution

The fourth proportional to 34,959.30, 48,224.88 and 20,809.41 is: 28,705.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,959.30 : 48,224.88 = 20,809.41 : x
  2. Step 2: Convert to fraction form
    34,959.30/48,224.88 = 20,809.41/x
  3. Step 3: Cross multiply
    34,959.30x = 48,224.88 × 20,809.41
  4. Step 4: Simplify right side
    34,959.30x = 1,003,531,300.12
  5. Step 5: Solve for x
    x = 1,003,531,300.12/34,959.30
  6. Step 6: Final answer
    x = 28,705.70

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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.