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Finding the Fourth Proportional to 61,457.78, 92,175.90 and 17,087.99

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Solution

The fourth proportional to 61,457.78, 92,175.90 and 17,087.99 is: 25,628.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,457.78 : 92,175.90 = 17,087.99 : x
  2. Step 2: Convert to fraction form
    61,457.78/92,175.90 = 17,087.99/x
  3. Step 3: Cross multiply
    61,457.78x = 92,175.90 × 17,087.99
  4. Step 4: Simplify right side
    61,457.78x = 1,575,100,639.79
  5. Step 5: Solve for x
    x = 1,575,100,639.79/61,457.78
  6. Step 6: Final answer
    x = 25,628.99

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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.