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Finding the Fourth Proportional to 40,991.67, 61,430.72 and 23,424.39

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Solution

The fourth proportional to 40,991.67, 61,430.72 and 23,424.39 is: 35,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,991.67 : 61,430.72 = 23,424.39 : x
  2. Step 2: Convert to fraction form
    40,991.67/61,430.72 = 23,424.39/x
  3. Step 3: Cross multiply
    40,991.67x = 61,430.72 × 23,424.39
  4. Step 4: Simplify right side
    40,991.67x = 1,438,977,026.14
  5. Step 5: Solve for x
    x = 1,438,977,026.14/40,991.67
  6. Step 6: Final answer
    x = 35,104.13

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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.