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Finding the Fourth Proportional to 53,957.66, 80,959.85 and 28,968.54

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Solution

The fourth proportional to 53,957.66, 80,959.85 and 28,968.54 is: 43,465.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,957.66 : 80,959.85 = 28,968.54 : x
  2. Step 2: Convert to fraction form
    53,957.66/80,959.85 = 28,968.54/x
  3. Step 3: Cross multiply
    53,957.66x = 80,959.85 × 28,968.54
  4. Step 4: Simplify right side
    53,957.66x = 2,345,288,508.28
  5. Step 5: Solve for x
    x = 2,345,288,508.28/53,957.66
  6. Step 6: Final answer
    x = 43,465.35

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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.