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Finding the Fourth Proportional to 9,394.98, 12,961.92 and 5,416.05

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Solution

The fourth proportional to 9,394.98, 12,961.92 and 5,416.05 is: 7,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,394.98 : 12,961.92 = 5,416.05 : x
  2. Step 2: Convert to fraction form
    9,394.98/12,961.92 = 5,416.05/x
  3. Step 3: Cross multiply
    9,394.98x = 12,961.92 × 5,416.05
  4. Step 4: Simplify right side
    9,394.98x = 70,202,406.82
  5. Step 5: Solve for x
    x = 70,202,406.82/9,394.98
  6. Step 6: Final answer
    x = 7,472.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.