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Finding the Fourth Proportional to 25,957.93, 38,949.18 and 15,448.72

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Solution

The fourth proportional to 25,957.93, 38,949.18 and 15,448.72 is: 23,180.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,957.93 : 38,949.18 = 15,448.72 : x
  2. Step 2: Convert to fraction form
    25,957.93/38,949.18 = 15,448.72/x
  3. Step 3: Cross multiply
    25,957.93x = 38,949.18 × 15,448.72
  4. Step 4: Simplify right side
    25,957.93x = 601,714,976.05
  5. Step 5: Solve for x
    x = 601,714,976.05/25,957.93
  6. Step 6: Final answer
    x = 23,180.39

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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.