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Finding the Fourth Proportional to 40,694.43, 61,059.15 and 21,970.74

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Solution

The fourth proportional to 40,694.43, 61,059.15 and 21,970.74 is: 32,965.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,694.43 : 61,059.15 = 21,970.74 : x
  2. Step 2: Convert to fraction form
    40,694.43/61,059.15 = 21,970.74/x
  3. Step 3: Cross multiply
    40,694.43x = 61,059.15 × 21,970.74
  4. Step 4: Simplify right side
    40,694.43x = 1,341,514,938.24
  5. Step 5: Solve for x
    x = 1,341,514,938.24/40,694.43
  6. Step 6: Final answer
    x = 32,965.56

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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.