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Finding the Fourth Proportional to 45,473.94, 68,211.18 and 15,871.07

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Solution

The fourth proportional to 45,473.94, 68,211.18 and 15,871.07 is: 23,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,473.94 : 68,211.18 = 15,871.07 : x
  2. Step 2: Convert to fraction form
    45,473.94/68,211.18 = 15,871.07/x
  3. Step 3: Cross multiply
    45,473.94x = 68,211.18 × 15,871.07
  4. Step 4: Simplify right side
    45,473.94x = 1,082,584,583.09
  5. Step 5: Solve for x
    x = 1,082,584,583.09/45,473.94
  6. Step 6: Final answer
    x = 23,806.70

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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.