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Finding the Fourth Proportional to 68,605.80, 102,908.70 and 33,527.40

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Solution

The fourth proportional to 68,605.80, 102,908.70 and 33,527.40 is: 50,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,605.80 : 102,908.70 = 33,527.40 : x
  2. Step 2: Convert to fraction form
    68,605.80/102,908.70 = 33,527.40/x
  3. Step 3: Cross multiply
    68,605.80x = 102,908.70 × 33,527.40
  4. Step 4: Simplify right side
    68,605.80x = 3,450,261,148.38
  5. Step 5: Solve for x
    x = 3,450,261,148.38/68,605.80
  6. Step 6: Final answer
    x = 50,291.10

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1.5x scale

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.