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Finding the Fourth Proportional to 66,684.84, 92,021.70 and 36,871.08

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Solution

The fourth proportional to 66,684.84, 92,021.70 and 36,871.08 is: 50,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,684.84 : 92,021.70 = 36,871.08 : x
  2. Step 2: Convert to fraction form
    66,684.84/92,021.70 = 36,871.08/x
  3. Step 3: Cross multiply
    66,684.84x = 92,021.70 × 36,871.08
  4. Step 4: Simplify right side
    66,684.84x = 3,392,939,462.44
  5. Step 5: Solve for x
    x = 3,392,939,462.44/66,684.84
  6. Step 6: Final answer
    x = 50,880.22

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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.