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Finding the Fourth Proportional to 9,794.64, 14,686.74 and 3,219.96

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Solution

The fourth proportional to 9,794.64, 14,686.74 and 3,219.96 is: 4,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,794.64 : 14,686.74 = 3,219.96 : x
  2. Step 2: Convert to fraction form
    9,794.64/14,686.74 = 3,219.96/x
  3. Step 3: Cross multiply
    9,794.64x = 14,686.74 × 3,219.96
  4. Step 4: Simplify right side
    9,794.64x = 47,290,715.33
  5. Step 5: Solve for x
    x = 47,290,715.33/9,794.64
  6. Step 6: Final answer
    x = 4,828.22

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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.