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Finding the Fourth Proportional to 18,007.68, 26,973.12 and 10,212.48

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Solution

The fourth proportional to 18,007.68, 26,973.12 and 10,212.48 is: 15,296.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.68 : 26,973.12 = 10,212.48 : x
  2. Step 2: Convert to fraction form
    18,007.68/26,973.12 = 10,212.48/x
  3. Step 3: Cross multiply
    18,007.68x = 26,973.12 × 10,212.48
  4. Step 4: Simplify right side
    18,007.68x = 275,462,448.54
  5. Step 5: Solve for x
    x = 275,462,448.54/18,007.68
  6. Step 6: Final answer
    x = 15,296.94

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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.