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Finding the Fourth Proportional to 48,433.71, 72,759.93 and 28,725.20

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Solution

The fourth proportional to 48,433.71, 72,759.93 and 28,725.20 is: 43,152.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,433.71 : 72,759.93 = 28,725.20 : x
  2. Step 2: Convert to fraction form
    48,433.71/72,759.93 = 28,725.20/x
  3. Step 3: Cross multiply
    48,433.71x = 72,759.93 × 28,725.20
  4. Step 4: Simplify right side
    48,433.71x = 2,090,043,177.44
  5. Step 5: Solve for x
    x = 2,090,043,177.44/48,433.71
  6. Step 6: Final answer
    x = 43,152.65

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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.