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Finding the Fourth Proportional to 49,773.60, 68,686.38 and 28,551.51

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Solution

The fourth proportional to 49,773.60, 68,686.38 and 28,551.51 is: 39,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,773.60 : 68,686.38 = 28,551.51 : x
  2. Step 2: Convert to fraction form
    49,773.60/68,686.38 = 28,551.51/x
  3. Step 3: Cross multiply
    49,773.60x = 68,686.38 × 28,551.51
  4. Step 4: Simplify right side
    49,773.60x = 1,961,099,865.43
  5. Step 5: Solve for x
    x = 1,961,099,865.43/49,773.60
  6. Step 6: Final answer
    x = 39,400.40

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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.