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Finding the Fourth Proportional to 15,864.53, 23,794.99 and 4,178.66

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Solution

The fourth proportional to 15,864.53, 23,794.99 and 4,178.66 is: 6,267.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,864.53 : 23,794.99 = 4,178.66 : x
  2. Step 2: Convert to fraction form
    15,864.53/23,794.99 = 4,178.66/x
  3. Step 3: Cross multiply
    15,864.53x = 23,794.99 × 4,178.66
  4. Step 4: Simplify right side
    15,864.53x = 99,431,043.49
  5. Step 5: Solve for x
    x = 99,431,043.49/15,864.53
  6. Step 6: Final answer
    x = 6,267.51

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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.