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Finding the Fourth Proportional to 45,302.52, 67,978.22 and 26,619.06

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Solution

The fourth proportional to 45,302.52, 67,978.22 and 26,619.06 is: 39,942.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,302.52 : 67,978.22 = 26,619.06 : x
  2. Step 2: Convert to fraction form
    45,302.52/67,978.22 = 26,619.06/x
  3. Step 3: Cross multiply
    45,302.52x = 67,978.22 × 26,619.06
  4. Step 4: Simplify right side
    45,302.52x = 1,809,516,316.87
  5. Step 5: Solve for x
    x = 1,809,516,316.87/45,302.52
  6. Step 6: Final answer
    x = 39,942.95

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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.