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Finding the Fourth Proportional to 23,651.01, 32,639.81 and 13,040.61

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Solution

The fourth proportional to 23,651.01, 32,639.81 and 13,040.61 is: 17,996.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,651.01 : 32,639.81 = 13,040.61 : x
  2. Step 2: Convert to fraction form
    23,651.01/32,639.81 = 13,040.61/x
  3. Step 3: Cross multiply
    23,651.01x = 32,639.81 × 13,040.61
  4. Step 4: Simplify right side
    23,651.01x = 425,642,967.48
  5. Step 5: Solve for x
    x = 425,642,967.48/23,651.01
  6. Step 6: Final answer
    x = 17,996.82

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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.