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Finding the Fourth Proportional to 66,809.90, 92,197.55 and 36,596.50

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Solution

The fourth proportional to 66,809.90, 92,197.55 and 36,596.50 is: 50,503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,809.90 : 92,197.55 = 36,596.50 : x
  2. Step 2: Convert to fraction form
    66,809.90/92,197.55 = 36,596.50/x
  3. Step 3: Cross multiply
    66,809.90x = 92,197.55 × 36,596.50
  4. Step 4: Simplify right side
    66,809.90x = 3,374,107,638.58
  5. Step 5: Solve for x
    x = 3,374,107,638.58/66,809.90
  6. Step 6: Final answer
    x = 50,503.11

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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.