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Finding the Fourth Proportional to 11,994.81, 16,557.06 and 7,906.93

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Solution

The fourth proportional to 11,994.81, 16,557.06 and 7,906.93 is: 10,914.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.81 : 16,557.06 = 7,906.93 : x
  2. Step 2: Convert to fraction form
    11,994.81/16,557.06 = 7,906.93/x
  3. Step 3: Cross multiply
    11,994.81x = 16,557.06 × 7,906.93
  4. Step 4: Simplify right side
    11,994.81x = 130,915,514.43
  5. Step 5: Solve for x
    x = 130,915,514.43/11,994.81
  6. Step 6: Final answer
    x = 10,914.35

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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.