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Finding the Fourth Proportional to 9,611.99, 13,244.86 and 7,090.11

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Solution

The fourth proportional to 9,611.99, 13,244.86 and 7,090.11 is: 9,769.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,611.99 : 13,244.86 = 7,090.11 : x
  2. Step 2: Convert to fraction form
    9,611.99/13,244.86 = 7,090.11/x
  3. Step 3: Cross multiply
    9,611.99x = 13,244.86 × 7,090.11
  4. Step 4: Simplify right side
    9,611.99x = 93,907,473.53
  5. Step 5: Solve for x
    x = 93,907,473.53/9,611.99
  6. Step 6: Final answer
    x = 9,769.83

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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.