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Finding the Fourth Proportional to 41,290.40, 61,964.40 and 26,535.20

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Solution

The fourth proportional to 41,290.40, 61,964.40 and 26,535.20 is: 39,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,290.40 : 61,964.40 = 26,535.20 : x
  2. Step 2: Convert to fraction form
    41,290.40/61,964.40 = 26,535.20/x
  3. Step 3: Cross multiply
    41,290.40x = 61,964.40 × 26,535.20
  4. Step 4: Simplify right side
    41,290.40x = 1,644,237,746.88
  5. Step 5: Solve for x
    x = 1,644,237,746.88/41,290.40
  6. Step 6: Final answer
    x = 39,821.31

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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.