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Finding the Fourth Proportional to 11,745.27, 17,619.71 and 5,505.84

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Solution

The fourth proportional to 11,745.27, 17,619.71 and 5,505.84 is: 8,259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.27 : 17,619.71 = 5,505.84 : x
  2. Step 2: Convert to fraction form
    11,745.27/17,619.71 = 5,505.84/x
  3. Step 3: Cross multiply
    11,745.27x = 17,619.71 × 5,505.84
  4. Step 4: Simplify right side
    11,745.27x = 97,011,276.58
  5. Step 5: Solve for x
    x = 97,011,276.58/11,745.27
  6. Step 6: Final answer
    x = 8,259.60

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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.