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Finding the Fourth Proportional to 68,510.50, 94,532.39 and 38,286.16

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Solution

The fourth proportional to 68,510.50, 94,532.39 and 38,286.16 is: 52,828.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,510.50 : 94,532.39 = 38,286.16 : x
  2. Step 2: Convert to fraction form
    68,510.50/94,532.39 = 38,286.16/x
  3. Step 3: Cross multiply
    68,510.50x = 94,532.39 × 38,286.16
  4. Step 4: Simplify right side
    68,510.50x = 3,619,281,736.06
  5. Step 5: Solve for x
    x = 3,619,281,736.06/68,510.50
  6. Step 6: Final answer
    x = 52,828.14

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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.