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Finding the Fourth Proportional to 48,310.72, 72,458.34 and 13,242.24

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Solution

The fourth proportional to 48,310.72, 72,458.34 and 13,242.24 is: 19,861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,310.72 : 72,458.34 = 13,242.24 : x
  2. Step 2: Convert to fraction form
    48,310.72/72,458.34 = 13,242.24/x
  3. Step 3: Cross multiply
    48,310.72x = 72,458.34 × 13,242.24
  4. Step 4: Simplify right side
    48,310.72x = 959,510,728.28
  5. Step 5: Solve for x
    x = 959,510,728.28/48,310.72
  6. Step 6: Final answer
    x = 19,861.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.