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Finding the Fourth Proportional to 61,272.74, 91,915.50 and 16,899.50

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Solution

The fourth proportional to 61,272.74, 91,915.50 and 16,899.50 is: 25,351.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,272.74 : 91,915.50 = 16,899.50 : x
  2. Step 2: Convert to fraction form
    61,272.74/91,915.50 = 16,899.50/x
  3. Step 3: Cross multiply
    61,272.74x = 91,915.50 × 16,899.50
  4. Step 4: Simplify right side
    61,272.74x = 1,553,325,532.67
  5. Step 5: Solve for x
    x = 1,553,325,532.67/61,272.74
  6. Step 6: Final answer
    x = 25,351.01

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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.