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Finding the Fourth Proportional to 59,659.50, 89,489.79 and 18,106.50

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Solution

The fourth proportional to 59,659.50, 89,489.79 and 18,106.50 is: 27,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,659.50 : 89,489.79 = 18,106.50 : x
  2. Step 2: Convert to fraction form
    59,659.50/89,489.79 = 18,106.50/x
  3. Step 3: Cross multiply
    59,659.50x = 89,489.79 × 18,106.50
  4. Step 4: Simplify right side
    59,659.50x = 1,620,346,882.64
  5. Step 5: Solve for x
    x = 1,620,346,882.64/59,659.50
  6. Step 6: Final answer
    x = 27,159.91

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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.