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Finding the Fourth Proportional to 13,293.70, 18,345.09 and 7,244.02

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Solution

The fourth proportional to 13,293.70, 18,345.09 and 7,244.02 is: 9,996.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.70 : 18,345.09 = 7,244.02 : x
  2. Step 2: Convert to fraction form
    13,293.70/18,345.09 = 7,244.02/x
  3. Step 3: Cross multiply
    13,293.70x = 18,345.09 × 7,244.02
  4. Step 4: Simplify right side
    13,293.70x = 132,892,198.86
  5. Step 5: Solve for x
    x = 132,892,198.86/13,293.70
  6. Step 6: Final answer
    x = 9,996.63

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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.