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Finding the Fourth Proportional to 68,492.56, 102,697.84 and 28,463.28

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Solution

The fourth proportional to 68,492.56, 102,697.84 and 28,463.28 is: 42,677.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,492.56 : 102,697.84 = 28,463.28 : x
  2. Step 2: Convert to fraction form
    68,492.56/102,697.84 = 28,463.28/x
  3. Step 3: Cross multiply
    68,492.56x = 102,697.84 × 28,463.28
  4. Step 4: Simplify right side
    68,492.56x = 2,923,117,375.32
  5. Step 5: Solve for x
    x = 2,923,117,375.32/68,492.56
  6. Step 6: Final answer
    x = 42,677.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.