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Finding the Fourth Proportional to 61,231.56, 91,836.30 and 16,852.56

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Solution

The fourth proportional to 61,231.56, 91,836.30 and 16,852.56 is: 25,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,231.56 : 91,836.30 = 16,852.56 : x
  2. Step 2: Convert to fraction form
    61,231.56/91,836.30 = 16,852.56/x
  3. Step 3: Cross multiply
    61,231.56x = 91,836.30 × 16,852.56
  4. Step 4: Simplify right side
    61,231.56x = 1,547,676,755.93
  5. Step 5: Solve for x
    x = 1,547,676,755.93/61,231.56
  6. Step 6: Final answer
    x = 25,275.80

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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.