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Finding the Fourth Proportional to 66,894.72, 92,312.64 and 36,679.25

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Solution

The fourth proportional to 66,894.72, 92,312.64 and 36,679.25 is: 50,616.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,894.72 : 92,312.64 = 36,679.25 : x
  2. Step 2: Convert to fraction form
    66,894.72/92,312.64 = 36,679.25/x
  3. Step 3: Cross multiply
    66,894.72x = 92,312.64 × 36,679.25
  4. Step 4: Simplify right side
    66,894.72x = 3,385,957,939.16
  5. Step 5: Solve for x
    x = 3,385,957,939.16/66,894.72
  6. Step 6: Final answer
    x = 50,616.22

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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.