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Finding the Fourth Proportional to 45,806.68, 68,712.72 and 14,639.50

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Solution

The fourth proportional to 45,806.68, 68,712.72 and 14,639.50 is: 21,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,806.68 : 68,712.72 = 14,639.50 : x
  2. Step 2: Convert to fraction form
    45,806.68/68,712.72 = 14,639.50/x
  3. Step 3: Cross multiply
    45,806.68x = 68,712.72 × 14,639.50
  4. Step 4: Simplify right side
    45,806.68x = 1,005,919,864.44
  5. Step 5: Solve for x
    x = 1,005,919,864.44/45,806.68
  6. Step 6: Final answer
    x = 21,960.11

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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.