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Finding the Fourth Proportional to 35,230.65, 48,621.36 and 19,318.20

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Solution

The fourth proportional to 35,230.65, 48,621.36 and 19,318.20 is: 26,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,230.65 : 48,621.36 = 19,318.20 : x
  2. Step 2: Convert to fraction form
    35,230.65/48,621.36 = 19,318.20/x
  3. Step 3: Cross multiply
    35,230.65x = 48,621.36 × 19,318.20
  4. Step 4: Simplify right side
    35,230.65x = 939,277,156.75
  5. Step 5: Solve for x
    x = 939,277,156.75/35,230.65
  6. Step 6: Final answer
    x = 26,660.80

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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.