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Finding the Fourth Proportional to 34,672.64, 51,878.96 and 20,581.08

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Solution

The fourth proportional to 34,672.64, 51,878.96 and 20,581.08 is: 30,794.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,672.64 : 51,878.96 = 20,581.08 : x
  2. Step 2: Convert to fraction form
    34,672.64/51,878.96 = 20,581.08/x
  3. Step 3: Cross multiply
    34,672.64x = 51,878.96 × 20,581.08
  4. Step 4: Simplify right side
    34,672.64x = 1,067,725,026.08
  5. Step 5: Solve for x
    x = 1,067,725,026.08/34,672.64
  6. Step 6: Final answer
    x = 30,794.45

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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.