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Finding the Fourth Proportional to 59,990.22, 89,969.67 and 17,858.88

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Solution

The fourth proportional to 59,990.22, 89,969.67 and 17,858.88 is: 26,783.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,990.22 : 89,969.67 = 17,858.88 : x
  2. Step 2: Convert to fraction form
    59,990.22/89,969.67 = 17,858.88/x
  3. Step 3: Cross multiply
    59,990.22x = 89,969.67 × 17,858.88
  4. Step 4: Simplify right side
    59,990.22x = 1,606,757,540.17
  5. Step 5: Solve for x
    x = 1,606,757,540.17/59,990.22
  6. Step 6: Final answer
    x = 26,783.66

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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.