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Finding the Fourth Proportional to 29,400.64, 40,573.34 and 15,972.16

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Solution

The fourth proportional to 29,400.64, 40,573.34 and 15,972.16 is: 22,041.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,400.64 : 40,573.34 = 15,972.16 : x
  2. Step 2: Convert to fraction form
    29,400.64/40,573.34 = 15,972.16/x
  3. Step 3: Cross multiply
    29,400.64x = 40,573.34 × 15,972.16
  4. Step 4: Simplify right side
    29,400.64x = 648,043,878.21
  5. Step 5: Solve for x
    x = 648,043,878.21/29,400.64
  6. Step 6: Final answer
    x = 22,041.83

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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.