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Finding the Fourth Proportional to 35,761.44, 53,642.22 and 12,387.88

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Solution

The fourth proportional to 35,761.44, 53,642.22 and 12,387.88 is: 18,581.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,761.44 : 53,642.22 = 12,387.88 : x
  2. Step 2: Convert to fraction form
    35,761.44/53,642.22 = 12,387.88/x
  3. Step 3: Cross multiply
    35,761.44x = 53,642.22 × 12,387.88
  4. Step 4: Simplify right side
    35,761.44x = 664,513,384.29
  5. Step 5: Solve for x
    x = 664,513,384.29/35,761.44
  6. Step 6: Final answer
    x = 18,581.84

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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.