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Finding the Fourth Proportional to 67,751.66, 101,627.55 and 28,287.26

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Solution

The fourth proportional to 67,751.66, 101,627.55 and 28,287.26 is: 42,430.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,751.66 : 101,627.55 = 28,287.26 : x
  2. Step 2: Convert to fraction form
    67,751.66/101,627.55 = 28,287.26/x
  3. Step 3: Cross multiply
    67,751.66x = 101,627.55 × 28,287.26
  4. Step 4: Simplify right side
    67,751.66x = 2,874,764,930.01
  5. Step 5: Solve for x
    x = 2,874,764,930.01/67,751.66
  6. Step 6: Final answer
    x = 42,430.92

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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.