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Finding the Fourth Proportional to 67,492.85, 93,138.46 and 36,864.72

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Solution

The fourth proportional to 67,492.85, 93,138.46 and 36,864.72 is: 50,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,492.85 : 93,138.46 = 36,864.72 : x
  2. Step 2: Convert to fraction form
    67,492.85/93,138.46 = 36,864.72/x
  3. Step 3: Cross multiply
    67,492.85x = 93,138.46 × 36,864.72
  4. Step 4: Simplify right side
    67,492.85x = 3,433,523,156.97
  5. Step 5: Solve for x
    x = 3,433,523,156.97/67,492.85
  6. Step 6: Final answer
    x = 50,872.40

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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.