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Finding the Fourth Proportional to 32,878.77, 45,319.39 and 25,696

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Solution

The fourth proportional to 32,878.77, 45,319.39 and 25,696 is: 35,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,878.77 : 45,319.39 = 25,696 : x
  2. Step 2: Convert to fraction form
    32,878.77/45,319.39 = 25,696/x
  3. Step 3: Cross multiply
    32,878.77x = 45,319.39 × 25,696
  4. Step 4: Simplify right side
    32,878.77x = 1,164,527,045.44
  5. Step 5: Solve for x
    x = 1,164,527,045.44/32,878.77
  6. Step 6: Final answer
    x = 35,418.81

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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.