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Finding the Fourth Proportional to 59,918.88, 89,889.84 and 22,980

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Solution

The fourth proportional to 59,918.88, 89,889.84 and 22,980 is: 34,474.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,918.88 : 89,889.84 = 22,980 : x
  2. Step 2: Convert to fraction form
    59,918.88/89,889.84 = 22,980/x
  3. Step 3: Cross multiply
    59,918.88x = 89,889.84 × 22,980
  4. Step 4: Simplify right side
    59,918.88x = 2,065,668,523.20
  5. Step 5: Solve for x
    x = 2,065,668,523.20/59,918.88
  6. Step 6: Final answer
    x = 34,474.42

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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.