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Finding the Fourth Proportional to 16,922.43, 23,353.13 and 9,368.87

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Solution

The fourth proportional to 16,922.43, 23,353.13 and 9,368.87 is: 12,929.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,922.43 : 23,353.13 = 9,368.87 : x
  2. Step 2: Convert to fraction form
    16,922.43/23,353.13 = 9,368.87/x
  3. Step 3: Cross multiply
    16,922.43x = 23,353.13 × 9,368.87
  4. Step 4: Simplify right side
    16,922.43x = 218,792,439.06
  5. Step 5: Solve for x
    x = 218,792,439.06/16,922.43
  6. Step 6: Final answer
    x = 12,929.14

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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.