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Finding the Fourth Proportional to 52,703.76, 79,055.22 and 21,517.14

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Solution

The fourth proportional to 52,703.76, 79,055.22 and 21,517.14 is: 32,275.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,703.76 : 79,055.22 = 21,517.14 : x
  2. Step 2: Convert to fraction form
    52,703.76/79,055.22 = 21,517.14/x
  3. Step 3: Cross multiply
    52,703.76x = 79,055.22 × 21,517.14
  4. Step 4: Simplify right side
    52,703.76x = 1,701,042,236.47
  5. Step 5: Solve for x
    x = 1,701,042,236.47/52,703.76
  6. Step 6: Final answer
    x = 32,275.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.