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Finding the Fourth Proportional to 16,994.96, 23,440.56 and 9,920.96

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Solution

The fourth proportional to 16,994.96, 23,440.56 and 9,920.96 is: 13,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,994.96 : 23,440.56 = 9,920.96 : x
  2. Step 2: Convert to fraction form
    16,994.96/23,440.56 = 9,920.96/x
  3. Step 3: Cross multiply
    16,994.96x = 23,440.56 × 9,920.96
  4. Step 4: Simplify right side
    16,994.96x = 232,552,858.14
  5. Step 5: Solve for x
    x = 232,552,858.14/16,994.96
  6. Step 6: Final answer
    x = 13,683.64

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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.