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Finding the Fourth Proportional to 16,919.15, 23,346.93 and 9,365.90

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Solution

The fourth proportional to 16,919.15, 23,346.93 and 9,365.90 is: 12,924.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.15 : 23,346.93 = 9,365.90 : x
  2. Step 2: Convert to fraction form
    16,919.15/23,346.93 = 9,365.90/x
  3. Step 3: Cross multiply
    16,919.15x = 23,346.93 × 9,365.90
  4. Step 4: Simplify right side
    16,919.15x = 218,664,930.07
  5. Step 5: Solve for x
    x = 218,664,930.07/16,919.15
  6. Step 6: Final answer
    x = 12,924.11

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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.