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Finding the Fourth Proportional to 12,399.86, 17,110.01 and 7,093.68

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Solution

The fourth proportional to 12,399.86, 17,110.01 and 7,093.68 is: 9,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.86 : 17,110.01 = 7,093.68 : x
  2. Step 2: Convert to fraction form
    12,399.86/17,110.01 = 7,093.68/x
  3. Step 3: Cross multiply
    12,399.86x = 17,110.01 × 7,093.68
  4. Step 4: Simplify right side
    12,399.86x = 121,372,900.27
  5. Step 5: Solve for x
    x = 121,372,900.27/12,399.86
  6. Step 6: Final answer
    x = 9,788.25

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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.