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Finding the Fourth Proportional to 23,411.84, 32,311.38 and 13,343.92

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Solution

The fourth proportional to 23,411.84, 32,311.38 and 13,343.92 is: 18,416.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,411.84 : 32,311.38 = 13,343.92 : x
  2. Step 2: Convert to fraction form
    23,411.84/32,311.38 = 13,343.92/x
  3. Step 3: Cross multiply
    23,411.84x = 32,311.38 × 13,343.92
  4. Step 4: Simplify right side
    23,411.84x = 431,160,469.81
  5. Step 5: Solve for x
    x = 431,160,469.81/23,411.84
  6. Step 6: Final answer
    x = 18,416.34

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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.