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Finding the Fourth Proportional to 34,487.64, 51,731.46 and 12,300.12

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Solution

The fourth proportional to 34,487.64, 51,731.46 and 12,300.12 is: 18,450.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,487.64 : 51,731.46 = 12,300.12 : x
  2. Step 2: Convert to fraction form
    34,487.64/51,731.46 = 12,300.12/x
  3. Step 3: Cross multiply
    34,487.64x = 51,731.46 × 12,300.12
  4. Step 4: Simplify right side
    34,487.64x = 636,303,165.78
  5. Step 5: Solve for x
    x = 636,303,165.78/34,487.64
  6. Step 6: Final answer
    x = 18,450.18

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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.