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Finding the Fourth Proportional to 39,375.90, 59,042.16 and 26,910

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Solution

The fourth proportional to 39,375.90, 59,042.16 and 26,910 is: 40,350.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,375.90 : 59,042.16 = 26,910 : x
  2. Step 2: Convert to fraction form
    39,375.90/59,042.16 = 26,910/x
  3. Step 3: Cross multiply
    39,375.90x = 59,042.16 × 26,910
  4. Step 4: Simplify right side
    39,375.90x = 1,588,824,525.60
  5. Step 5: Solve for x
    x = 1,588,824,525.60/39,375.90
  6. Step 6: Final answer
    x = 40,350.18

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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.