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Finding the Fourth Proportional to 9,798.21, 14,691.78 and 3,222.63

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Solution

The fourth proportional to 9,798.21, 14,691.78 and 3,222.63 is: 4,832.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,798.21 : 14,691.78 = 3,222.63 : x
  2. Step 2: Convert to fraction form
    9,798.21/14,691.78 = 3,222.63/x
  3. Step 3: Cross multiply
    9,798.21x = 14,691.78 × 3,222.63
  4. Step 4: Simplify right side
    9,798.21x = 47,346,170.98
  5. Step 5: Solve for x
    x = 47,346,170.98/9,798.21
  6. Step 6: Final answer
    x = 4,832.12

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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.