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Finding the Fourth Proportional to 16,959.96, 23,404.32 and 9,406.18

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Solution

The fourth proportional to 16,959.96, 23,404.32 and 9,406.18 is: 12,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,959.96 : 23,404.32 = 9,406.18 : x
  2. Step 2: Convert to fraction form
    16,959.96/23,404.32 = 9,406.18/x
  3. Step 3: Cross multiply
    16,959.96x = 23,404.32 × 9,406.18
  4. Step 4: Simplify right side
    16,959.96x = 220,145,246.70
  5. Step 5: Solve for x
    x = 220,145,246.70/16,959.96
  6. Step 6: Final answer
    x = 12,980.29

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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.