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Finding the Fourth Proportional to 21,956.96, 32,923.92 and 11,401.19

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Solution

The fourth proportional to 21,956.96, 32,923.92 and 11,401.19 is: 17,095.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.96 : 32,923.92 = 11,401.19 : x
  2. Step 2: Convert to fraction form
    21,956.96/32,923.92 = 11,401.19/x
  3. Step 3: Cross multiply
    21,956.96x = 32,923.92 × 11,401.19
  4. Step 4: Simplify right side
    21,956.96x = 375,371,867.46
  5. Step 5: Solve for x
    x = 375,371,867.46/21,956.96
  6. Step 6: Final answer
    x = 17,095.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.