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Finding the Fourth Proportional to 66,398.59, 99,608.26 and 26,958.48

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Solution

The fourth proportional to 66,398.59, 99,608.26 and 26,958.48 is: 40,441.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,398.59 : 99,608.26 = 26,958.48 : x
  2. Step 2: Convert to fraction form
    66,398.59/99,608.26 = 26,958.48/x
  3. Step 3: Cross multiply
    66,398.59x = 99,608.26 × 26,958.48
  4. Step 4: Simplify right side
    66,398.59x = 2,685,287,285.04
  5. Step 5: Solve for x
    x = 2,685,287,285.04/66,398.59
  6. Step 6: Final answer
    x = 40,441.93

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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.