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Finding the Fourth Proportional to 9,867.92, 13,611.48 and 7,504.88

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Solution

The fourth proportional to 9,867.92, 13,611.48 and 7,504.88 is: 10,351.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,867.92 : 13,611.48 = 7,504.88 : x
  2. Step 2: Convert to fraction form
    9,867.92/13,611.48 = 7,504.88/x
  3. Step 3: Cross multiply
    9,867.92x = 13,611.48 × 7,504.88
  4. Step 4: Simplify right side
    9,867.92x = 102,152,524.02
  5. Step 5: Solve for x
    x = 102,152,524.02/9,867.92
  6. Step 6: Final answer
    x = 10,351.98

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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.