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Finding the Fourth Proportional to 11,994.13, 18,014.91 and 7,259.86

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Solution

The fourth proportional to 11,994.13, 18,014.91 and 7,259.86 is: 10,904.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.13 : 18,014.91 = 7,259.86 : x
  2. Step 2: Convert to fraction form
    11,994.13/18,014.91 = 7,259.86/x
  3. Step 3: Cross multiply
    11,994.13x = 18,014.91 × 7,259.86
  4. Step 4: Simplify right side
    11,994.13x = 130,785,724.51
  5. Step 5: Solve for x
    x = 130,785,724.51/11,994.13
  6. Step 6: Final answer
    x = 10,904.14

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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.