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Finding the Fourth Proportional to 40,893.90, 61,398.45 and 25,341.90

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Solution

The fourth proportional to 40,893.90, 61,398.45 and 25,341.90 is: 38,048.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,893.90 : 61,398.45 = 25,341.90 : x
  2. Step 2: Convert to fraction form
    40,893.90/61,398.45 = 25,341.90/x
  3. Step 3: Cross multiply
    40,893.90x = 61,398.45 × 25,341.90
  4. Step 4: Simplify right side
    40,893.90x = 1,555,953,380.06
  5. Step 5: Solve for x
    x = 1,555,953,380.06/40,893.90
  6. Step 6: Final answer
    x = 38,048.54

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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.