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Finding the Fourth Proportional to 16,955.25, 23,398.53 and 9,401.90

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Solution

The fourth proportional to 16,955.25, 23,398.53 and 9,401.90 is: 12,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,955.25 : 23,398.53 = 9,401.90 : x
  2. Step 2: Convert to fraction form
    16,955.25/23,398.53 = 9,401.90/x
  3. Step 3: Cross multiply
    16,955.25x = 23,398.53 × 9,401.90
  4. Step 4: Simplify right side
    16,955.25x = 219,990,522.21
  5. Step 5: Solve for x
    x = 219,990,522.21/16,955.25
  6. Step 6: Final answer
    x = 12,974.77

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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.