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Finding the Fourth Proportional to 16,958.76, 23,404.44 and 9,405.84

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Solution

The fourth proportional to 16,958.76, 23,404.44 and 9,405.84 is: 12,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,958.76 : 23,404.44 = 9,405.84 : x
  2. Step 2: Convert to fraction form
    16,958.76/23,404.44 = 9,405.84/x
  3. Step 3: Cross multiply
    16,958.76x = 23,404.44 × 9,405.84
  4. Step 4: Simplify right side
    16,958.76x = 220,138,417.93
  5. Step 5: Solve for x
    x = 220,138,417.93/16,958.76
  6. Step 6: Final answer
    x = 12,980.81

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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.