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Finding the Fourth Proportional to 61,880.69, 92,806.16 and 28,568.75

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Solution

The fourth proportional to 61,880.69, 92,806.16 and 28,568.75 is: 42,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,880.69 : 92,806.16 = 28,568.75 : x
  2. Step 2: Convert to fraction form
    61,880.69/92,806.16 = 28,568.75/x
  3. Step 3: Cross multiply
    61,880.69x = 92,806.16 × 28,568.75
  4. Step 4: Simplify right side
    61,880.69x = 2,651,355,822.91
  5. Step 5: Solve for x
    x = 2,651,355,822.91/61,880.69
  6. Step 6: Final answer
    x = 42,846.26

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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.