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Finding the Fourth Proportional to 23,711.31, 32,748.02 and 18,397.99

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Solution

The fourth proportional to 23,711.31, 32,748.02 and 18,397.99 is: 25,409.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,711.31 : 32,748.02 = 18,397.99 : x
  2. Step 2: Convert to fraction form
    23,711.31/32,748.02 = 18,397.99/x
  3. Step 3: Cross multiply
    23,711.31x = 32,748.02 × 18,397.99
  4. Step 4: Simplify right side
    23,711.31x = 602,497,744.48
  5. Step 5: Solve for x
    x = 602,497,744.48/23,711.31
  6. Step 6: Final answer
    x = 25,409.72

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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.