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Finding the Fourth Proportional to 40,908.30, 56,450.51 and 23,005.90

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Solution

The fourth proportional to 40,908.30, 56,450.51 and 23,005.90 is: 31,746.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,908.30 : 56,450.51 = 23,005.90 : x
  2. Step 2: Convert to fraction form
    40,908.30/56,450.51 = 23,005.90/x
  3. Step 3: Cross multiply
    40,908.30x = 56,450.51 × 23,005.90
  4. Step 4: Simplify right side
    40,908.30x = 1,298,694,788.01
  5. Step 5: Solve for x
    x = 1,298,694,788.01/40,908.30
  6. Step 6: Final answer
    x = 31,746.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.