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Finding the Fourth Proportional to 59,668, 89,502.56 and 18,115

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Solution

The fourth proportional to 59,668, 89,502.56 and 18,115 is: 27,172.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,668 : 89,502.56 = 18,115 : x
  2. Step 2: Convert to fraction form
    59,668/89,502.56 = 18,115/x
  3. Step 3: Cross multiply
    59,668x = 89,502.56 × 18,115
  4. Step 4: Simplify right side
    59,668x = 1,621,338,874.40
  5. Step 5: Solve for x
    x = 1,621,338,874.40/59,668
  6. Step 6: Final answer
    x = 27,172.67

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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.