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Finding the Fourth Proportional to 34,487.50, 51,731.25 and 9,863.50

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Solution

The fourth proportional to 34,487.50, 51,731.25 and 9,863.50 is: 14,795.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,487.50 : 51,731.25 = 9,863.50 : x
  2. Step 2: Convert to fraction form
    34,487.50/51,731.25 = 9,863.50/x
  3. Step 3: Cross multiply
    34,487.50x = 51,731.25 × 9,863.50
  4. Step 4: Simplify right side
    34,487.50x = 510,251,184.38
  5. Step 5: Solve for x
    x = 510,251,184.38/34,487.50
  6. Step 6: Final answer
    x = 14,795.25

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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.