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Finding the Fourth Proportional to 59,640.64, 89,460.56 and 18,087.64

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Solution

The fourth proportional to 59,640.64, 89,460.56 and 18,087.64 is: 27,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,640.64 : 89,460.56 = 18,087.64 : x
  2. Step 2: Convert to fraction form
    59,640.64/89,460.56 = 18,087.64/x
  3. Step 3: Cross multiply
    59,640.64x = 89,460.56 × 18,087.64
  4. Step 4: Simplify right side
    59,640.64x = 1,618,130,403.48
  5. Step 5: Solve for x
    x = 1,618,130,403.48/59,640.64
  6. Step 6: Final answer
    x = 27,131.34

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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.