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Finding the Fourth Proportional to 16,923.86, 23,354.16 and 9,369.66

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Solution

The fourth proportional to 16,923.86, 23,354.16 and 9,369.66 is: 12,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,923.86 : 23,354.16 = 9,369.66 : x
  2. Step 2: Convert to fraction form
    16,923.86/23,354.16 = 9,369.66/x
  3. Step 3: Cross multiply
    16,923.86x = 23,354.16 × 9,369.66
  4. Step 4: Simplify right side
    16,923.86x = 218,820,422.01
  5. Step 5: Solve for x
    x = 218,820,422.01/16,923.86
  6. Step 6: Final answer
    x = 12,929.70

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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.