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Finding the Fourth Proportional to 67,618.64, 101,428.60 and 26,059.60

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Solution

The fourth proportional to 67,618.64, 101,428.60 and 26,059.60 is: 39,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,618.64 : 101,428.60 = 26,059.60 : x
  2. Step 2: Convert to fraction form
    67,618.64/101,428.60 = 26,059.60/x
  3. Step 3: Cross multiply
    67,618.64x = 101,428.60 × 26,059.60
  4. Step 4: Simplify right side
    67,618.64x = 2,643,188,744.56
  5. Step 5: Solve for x
    x = 2,643,188,744.56/67,618.64
  6. Step 6: Final answer
    x = 39,089.65

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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.