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Finding the Fourth Proportional to 61,219.80, 91,824.30 and 16,842.60

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Solution

The fourth proportional to 61,219.80, 91,824.30 and 16,842.60 is: 25,262.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,219.80 : 91,824.30 = 16,842.60 : x
  2. Step 2: Convert to fraction form
    61,219.80/91,824.30 = 16,842.60/x
  3. Step 3: Cross multiply
    61,219.80x = 91,824.30 × 16,842.60
  4. Step 4: Simplify right side
    61,219.80x = 1,546,559,955.18
  5. Step 5: Solve for x
    x = 1,546,559,955.18/61,219.80
  6. Step 6: Final answer
    x = 25,262.41

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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.