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Finding the Fourth Proportional to 61,863.75, 92,795.59 and 22,420.80

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Solution

The fourth proportional to 61,863.75, 92,795.59 and 22,420.80 is: 33,631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,863.75 : 92,795.59 = 22,420.80 : x
  2. Step 2: Convert to fraction form
    61,863.75/92,795.59 = 22,420.80/x
  3. Step 3: Cross multiply
    61,863.75x = 92,795.59 × 22,420.80
  4. Step 4: Simplify right side
    61,863.75x = 2,080,551,364.27
  5. Step 5: Solve for x
    x = 2,080,551,364.27/61,863.75
  6. Step 6: Final answer
    x = 33,631.19

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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.