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Finding the Fourth Proportional to 59,685.54, 89,534.15 and 21,745.11

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Solution

The fourth proportional to 59,685.54, 89,534.15 and 21,745.11 is: 32,619.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,685.54 : 89,534.15 = 21,745.11 : x
  2. Step 2: Convert to fraction form
    59,685.54/89,534.15 = 21,745.11/x
  3. Step 3: Cross multiply
    59,685.54x = 89,534.15 × 21,745.11
  4. Step 4: Simplify right side
    59,685.54x = 1,946,929,940.51
  5. Step 5: Solve for x
    x = 1,946,929,940.51/59,685.54
  6. Step 6: Final answer
    x = 32,619.79

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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.