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Finding the Fourth Proportional to 40,873.67, 61,313.24 and 15,912.10

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Solution

The fourth proportional to 40,873.67, 61,313.24 and 15,912.10 is: 23,869.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,873.67 : 61,313.24 = 15,912.10 : x
  2. Step 2: Convert to fraction form
    40,873.67/61,313.24 = 15,912.10/x
  3. Step 3: Cross multiply
    40,873.67x = 61,313.24 × 15,912.10
  4. Step 4: Simplify right side
    40,873.67x = 975,622,326.64
  5. Step 5: Solve for x
    x = 975,622,326.64/40,873.67
  6. Step 6: Final answer
    x = 23,869.21

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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.