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Finding the Fourth Proportional to 7,969.44, 11,955.60 and 3,588.96

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Solution

The fourth proportional to 7,969.44, 11,955.60 and 3,588.96 is: 5,384.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.44 : 11,955.60 = 3,588.96 : x
  2. Step 2: Convert to fraction form
    7,969.44/11,955.60 = 3,588.96/x
  3. Step 3: Cross multiply
    7,969.44x = 11,955.60 × 3,588.96
  4. Step 4: Simplify right side
    7,969.44x = 42,908,170.18
  5. Step 5: Solve for x
    x = 42,908,170.18/7,969.44
  6. Step 6: Final answer
    x = 5,384.09

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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.