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Finding the Fourth Proportional to 59,912.71, 89,871.36 and 15,538.30

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Solution

The fourth proportional to 59,912.71, 89,871.36 and 15,538.30 is: 23,308.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,912.71 : 89,871.36 = 15,538.30 : x
  2. Step 2: Convert to fraction form
    59,912.71/89,871.36 = 15,538.30/x
  3. Step 3: Cross multiply
    59,912.71x = 89,871.36 × 15,538.30
  4. Step 4: Simplify right side
    59,912.71x = 1,396,448,153.09
  5. Step 5: Solve for x
    x = 1,396,448,153.09/59,912.71
  6. Step 6: Final answer
    x = 23,308.05

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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.