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Finding the Fourth Proportional to 40,805.48, 61,149.90 and 23,239.01

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Solution

The fourth proportional to 40,805.48, 61,149.90 and 23,239.01 is: 34,825.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,805.48 : 61,149.90 = 23,239.01 : x
  2. Step 2: Convert to fraction form
    40,805.48/61,149.90 = 23,239.01/x
  3. Step 3: Cross multiply
    40,805.48x = 61,149.90 × 23,239.01
  4. Step 4: Simplify right side
    40,805.48x = 1,421,063,137.60
  5. Step 5: Solve for x
    x = 1,421,063,137.60/40,805.48
  6. Step 6: Final answer
    x = 34,825.30

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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.