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Finding the Fourth Proportional to 66,909.63, 92,335.23 and 36,695.43

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Solution

The fourth proportional to 66,909.63, 92,335.23 and 36,695.43 is: 50,639.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,909.63 : 92,335.23 = 36,695.43 : x
  2. Step 2: Convert to fraction form
    66,909.63/92,335.23 = 36,695.43/x
  3. Step 3: Cross multiply
    66,909.63x = 92,335.23 × 36,695.43
  4. Step 4: Simplify right side
    66,909.63x = 3,388,280,969.00
  5. Step 5: Solve for x
    x = 3,388,280,969.00/66,909.63
  6. Step 6: Final answer
    x = 50,639.66

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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.