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Finding the Fourth Proportional to 40,762.56, 61,072.32 and 29,014.56

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Solution

The fourth proportional to 40,762.56, 61,072.32 and 29,014.56 is: 43,470.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,762.56 : 61,072.32 = 29,014.56 : x
  2. Step 2: Convert to fraction form
    40,762.56/61,072.32 = 29,014.56/x
  3. Step 3: Cross multiply
    40,762.56x = 61,072.32 × 29,014.56
  4. Step 4: Simplify right side
    40,762.56x = 1,771,986,492.98
  5. Step 5: Solve for x
    x = 1,771,986,492.98/40,762.56
  6. Step 6: Final answer
    x = 43,470.93

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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.