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Finding the Fourth Proportional to 15,863.67, 23,794.05 and 9,621.81

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Solution

The fourth proportional to 15,863.67, 23,794.05 and 9,621.81 is: 14,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863.67 : 23,794.05 = 9,621.81 : x
  2. Step 2: Convert to fraction form
    15,863.67/23,794.05 = 9,621.81/x
  3. Step 3: Cross multiply
    15,863.67x = 23,794.05 × 9,621.81
  4. Step 4: Simplify right side
    15,863.67x = 228,941,828.23
  5. Step 5: Solve for x
    x = 228,941,828.23/15,863.67
  6. Step 6: Final answer
    x = 14,431.83

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1.5x scale

Why These Related Problems?

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