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Finding the Fourth Proportional to 66,897.10, 100,275.40 and 22,508.44

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Solution

The fourth proportional to 66,897.10, 100,275.40 and 22,508.44 is: 33,739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,897.10 : 100,275.40 = 22,508.44 : x
  2. Step 2: Convert to fraction form
    66,897.10/100,275.40 = 22,508.44/x
  3. Step 3: Cross multiply
    66,897.10x = 100,275.40 × 22,508.44
  4. Step 4: Simplify right side
    66,897.10x = 2,257,042,824.38
  5. Step 5: Solve for x
    x = 2,257,042,824.38/66,897.10
  6. Step 6: Final answer
    x = 33,739.03

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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.