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Finding the Fourth Proportional to 9,039.58, 13,535.78 and 7,274.94

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Solution

The fourth proportional to 9,039.58, 13,535.78 and 7,274.94 is: 10,893.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,039.58 : 13,535.78 = 7,274.94 : x
  2. Step 2: Convert to fraction form
    9,039.58/13,535.78 = 7,274.94/x
  3. Step 3: Cross multiply
    9,039.58x = 13,535.78 × 7,274.94
  4. Step 4: Simplify right side
    9,039.58x = 98,471,978.26
  5. Step 5: Solve for x
    x = 98,471,978.26/9,039.58
  6. Step 6: Final answer
    x = 10,893.43

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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.