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Finding the Fourth Proportional to 66,462.66, 91,723.94 and 37,791.34

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Solution

The fourth proportional to 66,462.66, 91,723.94 and 37,791.34 is: 52,155.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,462.66 : 91,723.94 = 37,791.34 : x
  2. Step 2: Convert to fraction form
    66,462.66/91,723.94 = 37,791.34/x
  3. Step 3: Cross multiply
    66,462.66x = 91,723.94 × 37,791.34
  4. Step 4: Simplify right side
    66,462.66x = 3,466,370,602.68
  5. Step 5: Solve for x
    x = 3,466,370,602.68/66,462.66
  6. Step 6: Final answer
    x = 52,155.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.