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Finding the Fourth Proportional to 45,774, 63,171.90 and 25,635.51

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Solution

The fourth proportional to 45,774, 63,171.90 and 25,635.51 is: 35,379.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,774 : 63,171.90 = 25,635.51 : x
  2. Step 2: Convert to fraction form
    45,774/63,171.90 = 25,635.51/x
  3. Step 3: Cross multiply
    45,774x = 63,171.90 × 25,635.51
  4. Step 4: Simplify right side
    45,774x = 1,619,443,874.17
  5. Step 5: Solve for x
    x = 1,619,443,874.17/45,774
  6. Step 6: Final answer
    x = 35,379.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.