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Finding the Fourth Proportional to 61,069.76, 91,610.10 and 16,696.74

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Solution

The fourth proportional to 61,069.76, 91,610.10 and 16,696.74 is: 25,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,069.76 : 91,610.10 = 16,696.74 : x
  2. Step 2: Convert to fraction form
    61,069.76/91,610.10 = 16,696.74/x
  3. Step 3: Cross multiply
    61,069.76x = 91,610.10 × 16,696.74
  4. Step 4: Simplify right side
    61,069.76x = 1,529,590,021.07
  5. Step 5: Solve for x
    x = 1,529,590,021.07/61,069.76
  6. Step 6: Final answer
    x = 25,046.60

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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.