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Finding the Fourth Proportional to 34,609.81, 51,915.84 and 10,917.60

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Solution

The fourth proportional to 34,609.81, 51,915.84 and 10,917.60 is: 16,376.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,609.81 : 51,915.84 = 10,917.60 : x
  2. Step 2: Convert to fraction form
    34,609.81/51,915.84 = 10,917.60/x
  3. Step 3: Cross multiply
    34,609.81x = 51,915.84 × 10,917.60
  4. Step 4: Simplify right side
    34,609.81x = 566,796,374.78
  5. Step 5: Solve for x
    x = 566,796,374.78/34,609.81
  6. Step 6: Final answer
    x = 16,376.75

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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.