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Finding the Fourth Proportional to 13,339.58, 18,410.04 and 7,674.57

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Solution

The fourth proportional to 13,339.58, 18,410.04 and 7,674.57 is: 10,591.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.58 : 18,410.04 = 7,674.57 : x
  2. Step 2: Convert to fraction form
    13,339.58/18,410.04 = 7,674.57/x
  3. Step 3: Cross multiply
    13,339.58x = 18,410.04 × 7,674.57
  4. Step 4: Simplify right side
    13,339.58x = 141,289,140.68
  5. Step 5: Solve for x
    x = 141,289,140.68/13,339.58
  6. Step 6: Final answer
    x = 10,591.73

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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.